Python calendar module | HTMLCalendar formatmonth() method

Last Updated : 13 May, 2022

Calendar module allows to output calendars like program, and provides additional useful functions related to the calendar. Functions and classes defined in Calendar module use an idealized calendar, the current Gregorian calendar extended indefinitely in both directions. class calendar.HTMLCalendar(firstweekday=0) can be used to generate  HTML calendars.. formatmonth() method is one of the methods of HTMLCalendar instance. formatmonth() method in Python is used to get month’s calendar as an HTML table.

Syntax: formatmonth(year, month, withyear=True) 

Parameter: 

year: year of the calendar 

month: month of the calendar

withyear: [optional] If withyear is true the year will be included in the header, otherwise just the month name will be used. 

Returns: Return a month’s calendar.

Code #1: 

Python3 
# Python program to demonstrate working of formatmonth() method

# importing calendar module
import calendar

text_cal = calendar.HTMLCalendar(firstweekday = 0)

year = 2018
month = 9
# default value of width is 0

# printing formatmonth
print(text_cal.formatmonth(year, month))

Output: 

HTML 
<table border="0" cellpadding="0" cellspacing="0" class="month">
    <tr>
        <th colspan="7" class="month">September 2018</th>
    </tr>
    <tr>
        <th class="mon">Mon</th>
        <th class="tue">Tue</th>
        <th class="wed">Wed</th>
        <th class="thu">Thu</th>
        <th class="fri">Fri</th>
        <th class="sat">Sat</th>
        <th class="sun">Sun</th>
    </tr>
    <tr>
        <td class="noday"> </td>
        <td class="noday"> </td>
        <td class="noday"> </td>
        <td class="noday"> </td>
        <td class="noday"> </td>
        <td class="sat">1</td>
        <td class="sun">2</td>
    </tr>
    <tr>
        <td class="mon">3</td>
        <td class="tue">4</td>
        <td class="wed">5</td>
        <td class="thu">6</td>
        <td class="fri">7</td>
        <td class="sat">8</td>
        <td class="sun">9</td>
    </tr>
    <tr>
        <td class="mon">10</td>
        <td class="tue">11</td>
        <td class="wed">12</td>
        <td class="thu">13</td>
        <td class="fri">14</td>
        <td class="sat">15</td>
        <td class="sun">16</td>
    </tr>
    <tr>
        <td class="mon">17</td>
        <td class="tue">18</td>
        <td class="wed">19</td>
        <td class="thu">20</td>
        <td class="fri">21</td>
        <td class="sat">22</td>
        <td class="sun">23</td>
    </tr>
    <tr>
        <td class="mon">24</td>
        <td class="tue">25</td>
        <td class="wed">26</td>
        <td class="thu">27</td>
        <td class="fri">28</td>
        <td class="sat">29</td>
        <td class="sun">30</td>
    </tr>
</table>

  Code #2: With parameter width 

Python3 
# Python program to demonstrate working of formatmonth() method

# importing calendar module
import calendar

text_cal = calendar.HTMLCalendar(firstweekday = 0)


# printing formatmonth
print(text_cal.formatmonth(2018, 9))

Output: 

HTML 
<table border="0" cellpadding="0" cellspacing="0" class="month">
    <tr>
        <th colspan="7" class="month">September 2018</th>
    </tr>
    <tr>
        <th class="mon">Mon</th>
        <th class="tue">Tue</th>
        <th class="wed">Wed</th>
        <th class="thu">Thu</th>
        <th class="fri">Fri</th>
        <th class="sat">Sat</th>
        <th class="sun">Sun</th>
    </tr>
    <tr>
        <td class="noday"> </td>
        <td class="noday"> </td>
        <td class="noday"> </td>
        <td class="noday"> </td>
        <td class="noday"> </td>
        <td class="sat">1</td>
        <td class="sun">2</td>
    </tr>
    <tr>
        <td class="mon">3</td>
        <td class="tue">4</td>
        <td class="wed">5</td>
        <td class="thu">6</td>
        <td class="fri">7</td>
        <td class="sat">8</td>
        <td class="sun">9</td>
    </tr>
    <tr>
        <td class="mon">10</td>
        <td class="tue">11</td>
        <td class="wed">12</td>
        <td class="thu">13</td>
        <td class="fri">14</td>
        <td class="sat">15</td>
        <td class="sun">16</td>
    </tr>
    <tr>
        <td class="mon">17</td>
        <td class="tue">18</td>
        <td class="wed">19</td>
        <td class="thu">20</td>
        <td class="fri">21</td>
        <td class="sat">22</td>
        <td class="sun">23</td>
    </tr>
    <tr>
        <td class="mon">24</td>
        <td class="tue">25</td>
        <td class="wed">26</td>
        <td class="thu">27</td>
        <td class="fri">28</td>
        <td class="sat">29</td>
        <td class="sun">30</td>
    </tr>
</table>

  Code #3: Year will be included in the header. 

Python3 
# Python program to demonstrate working of formatmonth() method

# importing calendar module
import calendar

text_cal = calendar.HTMLCalendar(firstweekday = 0)


# printing formatmonth
print(text_cal.formatmonth(2018, 9, withyear = True))

Output: 

Python3 
<table border ="0" cellpadding ="0" cellspacing ="0" class ="month">
    <tr>
        <th colspan ="7" class ="month">September 2018</th>
    </tr>
    <tr>
        <th class ="mon">Mon</th>
        <th class ="tue">Tue</th>
        <th class ="wed">Wed</th>
        <th class ="thu">Thu</th>
        <th class ="fri">Fri</th>
        <th class ="sat">Sat</th>
        <th class ="sun">Sun</th>
    </tr>
    <tr>
        <td class ="noday"> </td>
        <td class ="noday"> </td>
        <td class ="noday"> </td>
        <td class ="noday"> </td>
        <td class ="noday"> </td>
        <td class ="sat">1</td>
        <td class ="sun">2</td>
    </tr>
    <tr>
        <td class ="mon">3</td>
        <td class ="tue">4</td>
        <td class ="wed">5</td>
        <td class ="thu">6</td>
        <td class ="fri">7</td>
        <td class ="sat">8</td>
        <td class ="sun">9</td>
    </tr>
    <tr>
        <td class ="mon">10</td>
        <td class ="tue">11</td>
        <td class ="wed">12</td>
        <td class ="thu">13</td>
        <td class ="fri">14</td>
        <td class ="sat">15</td>
        <td class ="sun">16</td>
    </tr>
    <tr>
        <td class ="mon">17</td>
        <td class ="tue">18</td>
        <td class ="wed">19</td>
        <td class ="thu">20</td>
        <td class ="fri">21</td>
        <td class ="sat">22</td>
        <td class ="sun">23</td>
    </tr>
    <tr>
        <td class ="mon">24</td>
        <td class ="tue">25</td>
        <td class ="wed">26</td>
        <td class ="thu">27</td>
        <td class ="fri">28</td>
        <td class ="sat">29</td>
        <td class ="sun">30</td>
    </tr>
</table>
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