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 <section id="module-calendar">
<h1><a class="reference internal" href="#module-calendar" title="calendar: Functions for working with calendars, including some emulation of the Unix cal program."><code class="xref py py-mod docutils literal notranslate">calendar</code></a> — General calendar-related functions<a class="headerlink" href="#module-calendar" title="Permalink to this headline">¶</a></h1>
Source code: <a class="reference external" href="https://github.com/python/cpython/tree/3.10/Lib/calendar.py">Lib/calendar.py</a>
<hr class="docutils" />
This module allows you to output calendars like the Unix cal program,
and provides additional useful functions related to the calendar. By default,
these calendars have Monday as the first day of the week, and Sunday as the last
(the European convention). Use <a class="reference internal" href="#calendar.setfirstweekday" title="calendar.setfirstweekday"><code class="xref py py-func docutils literal notranslate">setfirstweekday()</code></a> to set the first day of
the week to Sunday (6) or to any other weekday. Parameters that specify dates
are given as integers. For related
functionality, see also the <a class="reference internal" href="datetime.html#module-datetime" title="datetime: Basic date and time types."><code class="xref py py-mod docutils literal notranslate">datetime</code></a> and <a class="reference internal" href="time.html#module-time" title="time: Time access and conversions."><code class="xref py py-mod docutils literal notranslate">time</code></a> modules.
The functions and classes defined in this module
use an idealized calendar, the current Gregorian calendar extended indefinitely
in both directions. This matches the definition of the “proleptic Gregorian”
calendar in Dershowitz and Reingold’s book “Calendrical Calculations”, where
it’s the base calendar for all computations. Zero and negative years are
interpreted as prescribed by the ISO 8601 standard. Year 0 is 1 BC, year -1 is
2 BC, and so on.
<dl class="py class">
<dt class="sig sig-object py" id="calendar.Calendar">
class calendar.Calendar(firstweekday=0)<a class="headerlink" href="#calendar.Calendar" title="Permalink to this definition">¶</a></dt>
<dd>Creates a <a class="reference internal" href="#calendar.Calendar" title="calendar.Calendar"><code class="xref py py-class docutils literal notranslate">Calendar</code></a> object. firstweekday is an integer specifying the
first day of the week. <a class="reference internal" href="#calendar.MONDAY" title="calendar.MONDAY"><code class="xref py py-const docutils literal notranslate">MONDAY</code></a> is <code class="docutils literal notranslate">0</code> (the default), <a class="reference internal" href="#calendar.SUNDAY" title="calendar.SUNDAY"><code class="xref py py-const docutils literal notranslate">SUNDAY</code></a> is <code class="docutils literal notranslate">6</code>.
A <a class="reference internal" href="#calendar.Calendar" title="calendar.Calendar"><code class="xref py py-class docutils literal notranslate">Calendar</code></a> object provides several methods that can be used for
preparing the calendar data for formatting. This class doesn’t do any formatting
itself. This is the job of subclasses.
<a class="reference internal" href="#calendar.Calendar" title="calendar.Calendar"><code class="xref py py-class docutils literal notranslate">Calendar</code></a> instances have the following methods:
<dl class="py method">
<dt class="sig sig-object py" id="calendar.Calendar.iterweekdays">
iterweekdays()<a class="headerlink" href="#calendar.Calendar.iterweekdays" title="Permalink to this definition">¶</a></dt>
<dd>Return an iterator for the week day numbers that will be used for one
week. The first value from the iterator will be the same as the value of
the <a class="reference internal" href="#calendar.firstweekday" title="calendar.firstweekday"><code class="xref py py-attr docutils literal notranslate">firstweekday</code></a> property.
</dd></dl>

<dl class="py method">
<dt class="sig sig-object py" id="calendar.Calendar.itermonthdates">
itermonthdates(year, month)<a class="headerlink" href="#calendar.Calendar.itermonthdates" title="Permalink to this definition">¶</a></dt>
<dd>Return an iterator for the month month (1–12) in the year year. This
iterator will return all days (as <a class="reference internal" href="datetime.html#datetime.date" title="datetime.date"><code class="xref py py-class docutils literal notranslate">datetime.date</code></a> objects) for the
month and all days before the start of the month or after the end of the
month that are required to get a complete week.
</dd></dl>

<dl class="py method">
<dt class="sig sig-object py" id="calendar.Calendar.itermonthdays">
itermonthdays(year, month)<a class="headerlink" href="#calendar.Calendar.itermonthdays" title="Permalink to this definition">¶</a></dt>
<dd>Return an iterator for the month month in the year year similar to
<a class="reference internal" href="#calendar.Calendar.itermonthdates" title="calendar.Calendar.itermonthdates"><code class="xref py py-meth docutils literal notranslate">itermonthdates()</code></a>, but not restricted by the <a class="reference internal" href="datetime.html#datetime.date" title="datetime.date"><code class="xref py py-class docutils literal notranslate">datetime.date</code></a>
range. Days returned will simply be day of the month numbers. For the
days outside of the specified month, the day number is <code class="docutils literal notranslate">0</code>.
</dd></dl>

<dl class="py method">
<dt class="sig sig-object py" id="calendar.Calendar.itermonthdays2">
itermonthdays2(year, month)<a class="headerlink" href="#calendar.Calendar.itermonthdays2" title="Permalink to this definition">¶</a></dt>
<dd>Return an iterator for the month month in the year year similar to
<a class="reference internal" href="#calendar.Calendar.itermonthdates" title="calendar.Calendar.itermonthdates"><code class="xref py py-meth docutils literal notranslate">itermonthdates()</code></a>, but not restricted by the <a class="reference internal" href="datetime.html#datetime.date" title="datetime.date"><code class="xref py py-class docutils literal notranslate">datetime.date</code></a>
range. Days returned will be tuples consisting of a day of the month
number and a week day number.
</dd></dl>

<dl class="py method">
<dt class="sig sig-object py" id="calendar.Calendar.itermonthdays3">
itermonthdays3(year, month)<a class="headerlink" href="#calendar.Calendar.itermonthdays3" title="Permalink to this definition">¶</a></dt>
<dd>Return an iterator for the month month in the year year similar to
<a class="reference internal" href="#calendar.Calendar.itermonthdates" title="calendar.Calendar.itermonthdates"><code class="xref py py-meth docutils literal notranslate">itermonthdates()</code></a>, but not restricted by the <a class="reference internal" href="datetime.html#datetime.date" title="datetime.date"><code class="xref py py-class docutils literal notranslate">datetime.date</code></a>
range. Days returned will be tuples consisting of a year, a month and a day
of the month numbers.
<div class="versionadded">
New in version 3.7.
</div>
</dd></dl>

<dl class="py method">
<dt class="sig sig-object py" id="calendar.Calendar.itermonthdays4">
itermonthdays4(year, month)<a class="headerlink" href="#calendar.Calendar.itermonthdays4" title="Permalink to this definition">¶</a></dt>
<dd>Return an iterator for the month month in the year year similar to
<a class="reference internal" href="#calendar.Calendar.itermonthdates" title="calendar.Calendar.itermonthdates"><code class="xref py py-meth docutils literal notranslate">itermonthdates()</code></a>, but not restricted by the <a class="reference internal" href="datetime.html#datetime.date" title="datetime.date"><code class="xref py py-class docutils literal notranslate">datetime.date</code></a>
range. Days returned will be tuples consisting of a year, a month, a day
of the month, and a day of the week numbers.
<div class="versionadded">
New in version 3.7.
</div>
</dd></dl>

<dl class="py method">
<dt class="sig sig-object py" id="calendar.Calendar.monthdatescalendar">
monthdatescalendar(year, month)<a class="headerlink" href="#calendar.Calendar.monthdatescalendar" title="Permalink to this definition">¶</a></dt>
<dd>Return a list of the weeks in the month month of the year as full
weeks. Weeks are lists of seven <a class="reference internal" href="datetime.html#datetime.date" title="datetime.date"><code class="xref py py-class docutils literal notranslate">datetime.date</code></a> objects.
</dd></dl>

<dl class="py method">
<dt class="sig sig-object py" id="calendar.Calendar.monthdays2calendar">
monthdays2calendar(year, month)<a class="headerlink" href="#calendar.Calendar.monthdays2calendar" title="Permalink to this definition">¶</a></dt>
<dd>Return a list of the weeks in the month month of the year as full
weeks. Weeks are lists of seven tuples of day numbers and weekday
numbers.
</dd></dl>

<dl class="py method">
<dt class="sig sig-object py" id="calendar.Calendar.monthdayscalendar">
monthdayscalendar(year, month)<a class="headerlink" href="#calendar.Calendar.monthdayscalendar" title="Permalink to this definition">¶</a></dt>
<dd>Return a list of the weeks in the month month of the year as full
weeks. Weeks are lists of seven day numbers.
</dd></dl>

<dl class="py method">
<dt class="sig sig-object py" id="calendar.Calendar.yeardatescalendar">
yeardatescalendar(year, width=3)<a class="headerlink" href="#calendar.Calendar.yeardatescalendar" title="Permalink to this definition">¶</a></dt>
<dd>Return the data for the specified year ready for formatting. The return
value is a list of month rows. Each month row contains up to width
months (defaulting to 3). Each month contains between 4 and 6 weeks and
each week contains 1–7 days. Days are <a class="reference internal" href="datetime.html#datetime.date" title="datetime.date"><code class="xref py py-class docutils literal notranslate">datetime.date</code></a> objects.
</dd></dl>

<dl class="py method">
<dt class="sig sig-object py" id="calendar.Calendar.yeardays2calendar">
yeardays2calendar(year, width=3)<a class="headerlink" href="#calendar.Calendar.yeardays2calendar" title="Permalink to this definition">¶</a></dt>
<dd>Return the data for the specified year ready for formatting (similar to
<a class="reference internal" href="#calendar.Calendar.yeardatescalendar" title="calendar.Calendar.yeardatescalendar"><code class="xref py py-meth docutils literal notranslate">yeardatescalendar()</code></a>). Entries in the week lists are tuples of day
numbers and weekday numbers. Day numbers outside this month are zero.
</dd></dl>

<dl class="py method">
<dt class="sig sig-object py" id="calendar.Calendar.yeardayscalendar">
yeardayscalendar(year, width=3)<a class="headerlink" href="#calendar.Calendar.yeardayscalendar" title="Permalink to this definition">¶</a></dt>
<dd>Return the data for the specified year ready for formatting (similar to
<a class="reference internal" href="#calendar.Calendar.yeardatescalendar" title="calendar.Calendar.yeardatescalendar"><code class="xref py py-meth docutils literal notranslate">yeardatescalendar()</code></a>). Entries in the week lists are day numbers. Day
numbers outside this month are zero.
</dd></dl>

</dd></dl>

<dl class="py class">
<dt class="sig sig-object py" id="calendar.TextCalendar">
class calendar.TextCalendar(firstweekday=0)<a class="headerlink" href="#calendar.TextCalendar" title="Permalink to this definition">¶</a></dt>
<dd>This class can be used to generate plain text calendars.
<a class="reference internal" href="#calendar.TextCalendar" title="calendar.TextCalendar"><code class="xref py py-class docutils literal notranslate">TextCalendar</code></a> instances have the following methods:
<dl class="py method">
<dt class="sig sig-object py" id="calendar.TextCalendar.formatmonth">
formatmonth(theyear, themonth, w=0, l=0)<a class="headerlink" href="#calendar.TextCalendar.formatmonth" title="Permalink to this definition">¶</a></dt>
<dd>Return a month’s calendar in a multi-line string. If w is provided, it
specifies the width of the date columns, which are centered. If l is
given, it specifies the number of lines that each week will use. Depends
on the first weekday as specified in the constructor or set by the
<a class="reference internal" href="#calendar.setfirstweekday" title="calendar.setfirstweekday"><code class="xref py py-meth docutils literal notranslate">setfirstweekday()</code></a> method.
</dd></dl>

<dl class="py method">
<dt class="sig sig-object py" id="calendar.TextCalendar.prmonth">
prmonth(theyear, themonth, w=0, l=0)<a class="headerlink" href="#calendar.TextCalendar.prmonth" title="Permalink to this definition">¶</a></dt>
<dd>Print a month’s calendar as returned by <a class="reference internal" href="#calendar.TextCalendar.formatmonth" title="calendar.TextCalendar.formatmonth"><code class="xref py py-meth docutils literal notranslate">formatmonth()</code></a>.
</dd></dl>

<dl class="py method">
<dt class="sig sig-object py" id="calendar.TextCalendar.formatyear">
formatyear(theyear, w=2, l=1, c=6, m=3)<a class="headerlink" href="#calendar.TextCalendar.formatyear" title="Permalink to this definition">¶</a></dt>
<dd>Return a m-column calendar for an entire year as a multi-line string.
Optional parameters w, l, and c are for date column width, lines per
week, and number of spaces between month columns, respectively. Depends on
the first weekday as specified in the constructor or set by the
<a class="reference internal" href="#calendar.setfirstweekday" title="calendar.setfirstweekday"><code class="xref py py-meth docutils literal notranslate">setfirstweekday()</code></a> method. The earliest year for which a calendar
can be generated is platform-dependent.
</dd></dl>

<dl class="py method">
<dt class="sig sig-object py" id="calendar.TextCalendar.pryear">
pryear(theyear, w=2, l=1, c=6, m=3)<a class="headerlink" href="#calendar.TextCalendar.pryear" title="Permalink to this definition">¶</a></dt>
<dd>Print the calendar for an entire year as returned by <a class="reference internal" href="#calendar.TextCalendar.formatyear" title="calendar.TextCalendar.formatyear"><code class="xref py py-meth docutils literal notranslate">formatyear()</code></a>.
</dd></dl>

</dd></dl>

<dl class="py class">
<dt class="sig sig-object py" id="calendar.HTMLCalendar">
class calendar.HTMLCalendar(firstweekday=0)<a class="headerlink" href="#calendar.HTMLCalendar" title="Permalink to this definition">¶</a></dt>
<dd>This class can be used to generate HTML calendars.
<code class="xref py py-class docutils literal notranslate">HTMLCalendar</code> instances have the following methods:
<dl class="py method">
<dt class="sig sig-object py" id="calendar.HTMLCalendar.formatmonth">
formatmonth(theyear, themonth, withyear=True)<a class="headerlink" href="#calendar.HTMLCalendar.formatmonth" title="Permalink to this definition">¶</a></dt>
<dd>Return a month’s calendar as an HTML table. If withyear is true the year
will be included in the header, otherwise just the month name will be
used.
</dd></dl>

<dl class="py method">
<dt class="sig sig-object py" id="calendar.HTMLCalendar.formatyear">
formatyear(theyear, width=3)<a class="headerlink" href="#calendar.HTMLCalendar.formatyear" title="Permalink to this definition">¶</a></dt>
<dd>Return a year’s calendar as an HTML table. width (defaulting to 3)
specifies the number of months per row.
</dd></dl>

<dl class="py method">
<dt class="sig sig-object py" id="calendar.HTMLCalendar.formatyearpage">
formatyearpage(theyear, width=3, css='calendar.css', encoding=None)<a class="headerlink" href="#calendar.HTMLCalendar.formatyearpage" title="Permalink to this definition">¶</a></dt>
<dd>Return a year’s calendar as a complete HTML page. width (defaulting to
3) specifies the number of months per row. css is the name for the
cascading style sheet to be used. <a class="reference internal" href="constants.html#None" title="None"><code class="xref py py-const docutils literal notranslate">None</code></a> can be passed if no style
sheet should be used. encoding specifies the encoding to be used for the
output (defaulting to the system default encoding).
</dd></dl>

<code class="xref py py-class docutils literal notranslate">HTMLCalendar</code> has the following attributes you can override to
customize the CSS classes used by the calendar:
<dl class="py attribute">
<dt class="sig sig-object py" id="calendar.HTMLCalendar.cssclasses">
cssclasses<a class="headerlink" href="#calendar.HTMLCalendar.cssclasses" title="Permalink to this definition">¶</a></dt>
<dd>A list of CSS classes used for each weekday. The default class list is:
<div class="highlight-python3 notranslate"><div class="highlight"><pre>cssclasses = [&quot;mon&quot;, &quot;tue&quot;, &quot;wed&quot;, &quot;thu&quot;, &quot;fri&quot;, &quot;sat&quot;, &quot;sun&quot;]
</pre></div>
</div>
more styles can be added for each day:
<div class="highlight-python3 notranslate"><div class="highlight"><pre>cssclasses = [&quot;mon text-bold&quot;, &quot;tue&quot;, &quot;wed&quot;, &quot;thu&quot;, &quot;fri&quot;, &quot;sat&quot;, &quot;sun red&quot;]
</pre></div>
</div>
Note that the length of this list must be seven items.
</dd></dl>

<dl class="py attribute">
<dt class="sig sig-object py" id="calendar.HTMLCalendar.cssclass_noday">
cssclass_noday<a class="headerlink" href="#calendar.HTMLCalendar.cssclass_noday" title="Permalink to this definition">¶</a></dt>
<dd>The CSS class for a weekday occurring in the previous or coming month.
<div class="versionadded">
New in version 3.7.
</div>
</dd></dl>

<dl class="py attribute">
<dt class="sig sig-object py" id="calendar.HTMLCalendar.cssclasses_weekday_head">
cssclasses_weekday_head<a class="headerlink" href="#calendar.HTMLCalendar.cssclasses_weekday_head" title="Permalink to this definition">¶</a></dt>
<dd>A list of CSS classes used for weekday names in the header row.
The default is the same as <a class="reference internal" href="#calendar.HTMLCalendar.cssclasses" title="calendar.HTMLCalendar.cssclasses"><code class="xref py py-attr docutils literal notranslate">cssclasses</code></a>.
<div class="versionadded">
New in version 3.7.
</div>
</dd></dl>

<dl class="py attribute">
<dt class="sig sig-object py" id="calendar.HTMLCalendar.cssclass_month_head">
cssclass_month_head<a class="headerlink" href="#calendar.HTMLCalendar.cssclass_month_head" title="Permalink to this definition">¶</a></dt>
<dd>The month’s head CSS class (used by <code class="xref py py-meth docutils literal notranslate">formatmonthname()</code>).
The default value is <code class="docutils literal notranslate">&quot;month&quot;</code>.
<div class="versionadded">
New in version 3.7.
</div>
</dd></dl>

<dl class="py attribute">
<dt class="sig sig-object py" id="calendar.HTMLCalendar.cssclass_month">
cssclass_month<a class="headerlink" href="#calendar.HTMLCalendar.cssclass_month" title="Permalink to this definition">¶</a></dt>
<dd>The CSS class for the whole month’s table (used by <a class="reference internal" href="#calendar.HTMLCalendar.formatmonth" title="calendar.HTMLCalendar.formatmonth"><code class="xref py py-meth docutils literal notranslate">formatmonth()</code></a>).
The default value is <code class="docutils literal notranslate">&quot;month&quot;</code>.
<div class="versionadded">
New in version 3.7.
</div>
</dd></dl>

<dl class="py attribute">
<dt class="sig sig-object py" id="calendar.HTMLCalendar.cssclass_year">
cssclass_year<a class="headerlink" href="#calendar.HTMLCalendar.cssclass_year" title="Permalink to this definition">¶</a></dt>
<dd>The CSS class for the whole year’s table of tables (used by
<a class="reference internal" href="#calendar.HTMLCalendar.formatyear" title="calendar.HTMLCalendar.formatyear"><code class="xref py py-meth docutils literal notranslate">formatyear()</code></a>). The default value is <code class="docutils literal notranslate">&quot;year&quot;</code>.
<div class="versionadded">
New in version 3.7.
</div>
</dd></dl>

<dl class="py attribute">
<dt class="sig sig-object py" id="calendar.HTMLCalendar.cssclass_year_head">
cssclass_year_head<a class="headerlink" href="#calendar.HTMLCalendar.cssclass_year_head" title="Permalink to this definition">¶</a></dt>
<dd>The CSS class for the table head for the whole year (used by
<a class="reference internal" href="#calendar.HTMLCalendar.formatyear" title="calendar.HTMLCalendar.formatyear"><code class="xref py py-meth docutils literal notranslate">formatyear()</code></a>). The default value is <code class="docutils literal notranslate">&quot;year&quot;</code>.
<div class="versionadded">
New in version 3.7.
</div>
</dd></dl>

Note that although the naming for the above described class attributes is
singular (e.g. <code class="docutils literal notranslate">cssclass_month</code> <code class="docutils literal notranslate">cssclass_noday</code>), one can replace the
single CSS class with a space separated list of CSS classes, for example:
<div class="highlight-python3 notranslate"><div class="highlight"><pre>&quot;text-bold text-red&quot;
</pre></div>
</div>
Here is an example how <code class="xref py py-class docutils literal notranslate">HTMLCalendar</code> can be customized:
<div class="highlight-python3 notranslate"><div class="highlight"><pre>class CustomHTMLCal(calendar.HTMLCalendar):
 cssclasses = [style + &quot; text-nowrap&quot; for style in
 calendar.HTMLCalendar.cssclasses]
 cssclass_month_head = &quot;text-center month-head&quot;
 cssclass_month = &quot;text-center month&quot;
 cssclass_year = &quot;text-italic lead&quot;
</pre></div>
</div>
</dd></dl>

<dl class="py class">
<dt class="sig sig-object py" id="calendar.LocaleTextCalendar">
class calendar.LocaleTextCalendar(firstweekday=0, locale=None)<a class="headerlink" href="#calendar.LocaleTextCalendar" title="Permalink to this definition">¶</a></dt>
<dd>This subclass of <a class="reference internal" href="#calendar.TextCalendar" title="calendar.TextCalendar"><code class="xref py py-class docutils literal notranslate">TextCalendar</code></a> can be passed a locale name in the
constructor and will return month and weekday names in the specified locale.
If this locale includes an encoding all strings containing month and weekday
names will be returned as unicode.
</dd></dl>

<dl class="py class">
<dt class="sig sig-object py" id="calendar.LocaleHTMLCalendar">
class calendar.LocaleHTMLCalendar(firstweekday=0, locale=None)<a class="headerlink" href="#calendar.LocaleHTMLCalendar" title="Permalink to this definition">¶</a></dt>
<dd>This subclass of <a class="reference internal" href="#calendar.HTMLCalendar" title="calendar.HTMLCalendar"><code class="xref py py-class docutils literal notranslate">HTMLCalendar</code></a> can be passed a locale name in the
constructor and will return month and weekday names in the specified
locale. If this locale includes an encoding all strings containing month and
weekday names will be returned as unicode.
</dd></dl>

<div class="admonition note">
Note
The <code class="xref py py-meth docutils literal notranslate">formatweekday()</code> and <code class="xref py py-meth docutils literal notranslate">formatmonthname()</code> methods of these two
classes temporarily change the current locale to the given locale. Because
the current locale is a process-wide setting, they are not thread-safe.
</div>
For simple text calendars this module provides the following functions.
<dl class="py function">
<dt class="sig sig-object py" id="calendar.setfirstweekday">
calendar.setfirstweekday(weekday)<a class="headerlink" href="#calendar.setfirstweekday" title="Permalink to this definition">¶</a></dt>
<dd>Sets the weekday (<code class="docutils literal notranslate">0</code> is Monday, <code class="docutils literal notranslate">6</code> is Sunday) to start each week. The
values <a class="reference internal" href="#calendar.MONDAY" title="calendar.MONDAY"><code class="xref py py-const docutils literal notranslate">MONDAY</code></a>, <a class="reference internal" href="#calendar.TUESDAY" title="calendar.TUESDAY"><code class="xref py py-const docutils literal notranslate">TUESDAY</code></a>, <a class="reference internal" href="#calendar.WEDNESDAY" title="calendar.WEDNESDAY"><code class="xref py py-const docutils literal notranslate">WEDNESDAY</code></a>, <a class="reference internal" href="#calendar.THURSDAY" title="calendar.THURSDAY"><code class="xref py py-const docutils literal notranslate">THURSDAY</code></a>,
<a class="reference internal" href="#calendar.FRIDAY" title="calendar.FRIDAY"><code class="xref py py-const docutils literal notranslate">FRIDAY</code></a>, <a class="reference internal" href="#calendar.SATURDAY" title="calendar.SATURDAY"><code class="xref py py-const docutils literal notranslate">SATURDAY</code></a>, and <a class="reference internal" href="#calendar.SUNDAY" title="calendar.SUNDAY"><code class="xref py py-const docutils literal notranslate">SUNDAY</code></a> are provided for
convenience. For example, to set the first weekday to Sunday:
<div class="highlight-python3 notranslate"><div class="highlight"><pre>import calendar
calendar.setfirstweekday(calendar.SUNDAY)
</pre></div>
</div>
</dd></dl>

<dl class="py function">
<dt class="sig sig-object py" id="calendar.firstweekday">
calendar.firstweekday()<a class="headerlink" href="#calendar.firstweekday" title="Permalink to this definition">¶</a></dt>
<dd>Returns the current setting for the weekday to start each week.
</dd></dl>

<dl class="py function">
<dt class="sig sig-object py" id="calendar.isleap">
calendar.isleap(year)<a class="headerlink" href="#calendar.isleap" title="Permalink to this definition">¶</a></dt>
<dd>Returns <a class="reference internal" href="constants.html#True" title="True"><code class="xref py py-const docutils literal notranslate">True</code></a> if year is a leap year, otherwise <a class="reference internal" href="constants.html#False" title="False"><code class="xref py py-const docutils literal notranslate">False</code></a>.
</dd></dl>

<dl class="py function">
<dt class="sig sig-object py" id="calendar.leapdays">
calendar.leapdays(y1, y2)<a class="headerlink" href="#calendar.leapdays" title="Permalink to this definition">¶</a></dt>
<dd>Returns the number of leap years in the range from y1 to y2 (exclusive),
where y1 and y2 are years.
This function works for ranges spanning a century change.
</dd></dl>

<dl class="py function">
<dt class="sig sig-object py" id="calendar.weekday">
calendar.weekday(year, month, day)<a class="headerlink" href="#calendar.weekday" title="Permalink to this definition">¶</a></dt>
<dd>Returns the day of the week (<code class="docutils literal notranslate">0</code> is Monday) for year (<code class="docutils literal notranslate">1970</code>–…),
month (<code class="docutils literal notranslate">1</code>–<code class="docutils literal notranslate">12</code>), day (<code class="docutils literal notranslate">1</code>–<code class="docutils literal notranslate">31</code>).
</dd></dl>

<dl class="py function">
<dt class="sig sig-object py" id="calendar.weekheader">
calendar.weekheader(n)<a class="headerlink" href="#calendar.weekheader" title="Permalink to this definition">¶</a></dt>
<dd>Return a header containing abbreviated weekday names. n specifies the width in
characters for one weekday.
</dd></dl>

<dl class="py function">
<dt class="sig sig-object py" id="calendar.monthrange">
calendar.monthrange(year, month)<a class="headerlink" href="#calendar.monthrange" title="Permalink to this definition">¶</a></dt>
<dd>Returns weekday of first day of the month and number of days in month, for the
specified year and month.
</dd></dl>

<dl class="py function">
<dt class="sig sig-object py" id="calendar.monthcalendar">
calendar.monthcalendar(year, month)<a class="headerlink" href="#calendar.monthcalendar" title="Permalink to this definition">¶</a></dt>
<dd>Returns a matrix representing a month’s calendar. Each row represents a week;
days outside of the month are represented by zeros. Each week begins with Monday
unless set by <a class="reference internal" href="#calendar.setfirstweekday" title="calendar.setfirstweekday"><code class="xref py py-func docutils literal notranslate">setfirstweekday()</code></a>.
</dd></dl>

<dl class="py function">
<dt class="sig sig-object py" id="calendar.prmonth">
calendar.prmonth(theyear, themonth, w=0, l=0)<a class="headerlink" href="#calendar.prmonth" title="Permalink to this definition">¶</a></dt>
<dd>Prints a month’s calendar as returned by <a class="reference internal" href="#calendar.month" title="calendar.month"><code class="xref py py-func docutils literal notranslate">month()</code></a>.
</dd></dl>

<dl class="py function">
<dt class="sig sig-object py" id="calendar.month">
calendar.month(theyear, themonth, w=0, l=0)<a class="headerlink" href="#calendar.month" title="Permalink to this definition">¶</a></dt>
<dd>Returns a month’s calendar in a multi-line string using the <code class="xref py py-meth docutils literal notranslate">formatmonth()</code>
of the <a class="reference internal" href="#calendar.TextCalendar" title="calendar.TextCalendar"><code class="xref py py-class docutils literal notranslate">TextCalendar</code></a> class.
</dd></dl>

<dl class="py function">
<dt class="sig sig-object py" id="calendar.prcal">
calendar.prcal(year, w=0, l=0, c=6, m=3)<a class="headerlink" href="#calendar.prcal" title="Permalink to this definition">¶</a></dt>
<dd>Prints the calendar for an entire year as returned by <a class="reference internal" href="#module-calendar" title="calendar: Functions for working with calendars, including some emulation of the Unix cal program."><code class="xref py py-func docutils literal notranslate">calendar()</code></a>.
</dd></dl>

<dl class="py function">
<dt class="sig sig-object py" id="calendar.calendar">
calendar.calendar(year, w=2, l=1, c=6, m=3)<a class="headerlink" href="#calendar.calendar" title="Permalink to this definition">¶</a></dt>
<dd>Returns a 3-column calendar for an entire year as a multi-line string using
the <code class="xref py py-meth docutils literal notranslate">formatyear()</code> of the <a class="reference internal" href="#calendar.TextCalendar" title="calendar.TextCalendar"><code class="xref py py-class docutils literal notranslate">TextCalendar</code></a> class.
</dd></dl>

<dl class="py function">
<dt class="sig sig-object py" id="calendar.timegm">
calendar.timegm(tuple)<a class="headerlink" href="#calendar.timegm" title="Permalink to this definition">¶</a></dt>
<dd>An unrelated but handy function that takes a time tuple such as returned by
the <a class="reference internal" href="time.html#time.gmtime" title="time.gmtime"><code class="xref py py-func docutils literal notranslate">gmtime()</code></a> function in the <a class="reference internal" href="time.html#module-time" title="time: Time access and conversions."><code class="xref py py-mod docutils literal notranslate">time</code></a> module, and returns the
corresponding Unix timestamp value, assuming an epoch of 1970, and the POSIX
encoding. In fact, <a class="reference internal" href="time.html#time.gmtime" title="time.gmtime"><code class="xref py py-func docutils literal notranslate">time.gmtime()</code></a> and <a class="reference internal" href="#calendar.timegm" title="calendar.timegm"><code class="xref py py-func docutils literal notranslate">timegm()</code></a> are each others’
inverse.
</dd></dl>

The <a class="reference internal" href="#module-calendar" title="calendar: Functions for working with calendars, including some emulation of the Unix cal program."><code class="xref py py-mod docutils literal notranslate">calendar</code></a> module exports the following data attributes:
<dl class="py data">
<dt class="sig sig-object py" id="calendar.day_name">
calendar.day_name<a class="headerlink" href="#calendar.day_name" title="Permalink to this definition">¶</a></dt>
<dd>An array that represents the days of the week in the current locale.
</dd></dl>

<dl class="py data">
<dt class="sig sig-object py" id="calendar.day_abbr">
calendar.day_abbr<a class="headerlink" href="#calendar.day_abbr" title="Permalink to this definition">¶</a></dt>
<dd>An array that represents the abbreviated days of the week in the current locale.
</dd></dl>

<dl class="py data">
<dt class="sig sig-object py" id="calendar.month_name">
calendar.month_name<a class="headerlink" href="#calendar.month_name" title="Permalink to this definition">¶</a></dt>
<dd>An array that represents the months of the year in the current locale. This
follows normal convention of January being month number 1, so it has a length of
13 and <code class="docutils literal notranslate">month_name[0]</code> is the empty string.
</dd></dl>

<dl class="py data">
<dt class="sig sig-object py" id="calendar.month_abbr">
calendar.month_abbr<a class="headerlink" href="#calendar.month_abbr" title="Permalink to this definition">¶</a></dt>
<dd>An array that represents the abbreviated months of the year in the current
locale. This follows normal convention of January being month number 1, so it
has a length of 13 and <code class="docutils literal notranslate">month_abbr[0]</code> is the empty string.
</dd></dl>

<dl class="py data">
<dt class="sig sig-object py" id="calendar.MONDAY">
calendar.MONDAY<a class="headerlink" href="#calendar.MONDAY" title="Permalink to this definition">¶</a></dt>
<dt class="sig sig-object py" id="calendar.TUESDAY">
calendar.TUESDAY<a class="headerlink" href="#calendar.TUESDAY" title="Permalink to this definition">¶</a></dt>
<dt class="sig sig-object py" id="calendar.WEDNESDAY">
calendar.WEDNESDAY<a class="headerlink" href="#calendar.WEDNESDAY" title="Permalink to this definition">¶</a></dt>
<dt class="sig sig-object py" id="calendar.THURSDAY">
calendar.THURSDAY<a class="headerlink" href="#calendar.THURSDAY" title="Permalink to this definition">¶</a></dt>
<dt class="sig sig-object py" id="calendar.FRIDAY">
calendar.FRIDAY<a class="headerlink" href="#calendar.FRIDAY" title="Permalink to this definition">¶</a></dt>
<dt class="sig sig-object py" id="calendar.SATURDAY">
calendar.SATURDAY<a class="headerlink" href="#calendar.SATURDAY" title="Permalink to this definition">¶</a></dt>
<dt class="sig sig-object py" id="calendar.SUNDAY">
calendar.SUNDAY<a class="headerlink" href="#calendar.SUNDAY" title="Permalink to this definition">¶</a></dt>
<dd>Aliases for day numbers, where <code class="docutils literal notranslate">MONDAY</code> is <code class="docutils literal notranslate">0</code> and <code class="docutils literal notranslate">SUNDAY</code> is <code class="docutils literal notranslate">6</code>.
</dd></dl>

<div class="admonition seealso">
See also
<dl class="simple">
<dt>Module <a class="reference internal" href="datetime.html#module-datetime" title="datetime: Basic date and time types."><code class="xref py py-mod docutils literal notranslate">datetime</code></a></dt><dd>Object-oriented interface to dates and times with similar functionality to the
<a class="reference internal" href="time.html#module-time" title="time: Time access and conversions."><code class="xref py py-mod docutils literal notranslate">time</code></a> module.
</dd>
<dt>Module <a class="reference internal" href="time.html#module-time" title="time: Time access and conversions."><code class="xref py py-mod docutils literal notranslate">time</code></a></dt><dd>Low-level time related functions.
</dd>
</dl>
</div>
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