Calendar

参考資料 * Pythonのcalendarでカレンダーを取得・出力（テキスト、HTMLなど） * PYMOTW

月間カレンダー

month()

import calendar

print(calendar.month(2020, 11)) # 戻り値は文字列

   November 2020
Mo Tu We Th Fr Sa Su
                   1
 2  3  4  5  6  7  8
 9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30

# 引数wで列幅、引数lで行幅を指定可能
print(calendar.month(2020, 11, w=7, l=2))

                     November 2020

  Mon     Tue     Wed     Thu     Fri     Sat     Sun

                                                    1

    2       3       4       5       6       7       8

    9      10      11      12      13      14      15

   16      17      18      19      20      21      22

   23      24      25      26      27      28      29

   30

prmonth()

import calendar

c = calendar.TextCalendar(calendar.SUNDAY) # 日曜日を一週間のスタートとする(デフォルトは月曜日)
c.prmonth(2020, 11)

   November 2020
Su Mo Tu We Th Fr Sa
 1  2  3  4  5  6  7
 8  9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30

prmonth()はフォーマットずみの月間カレンダーを出力する
一方、month()は文字列を戻る

年間カレンダー

calendar()

print(calendar.calendar(2020))

                                  2020

      January                   February                   March
Mo Tu We Th Fr Sa Su      Mo Tu We Th Fr Sa Su      Mo Tu We Th Fr Sa Su
       1  2  3  4  5                      1  2                         1
 6  7  8  9 10 11 12       3  4  5  6  7  8  9       2  3  4  5  6  7  8
13 14 15 16 17 18 19      10 11 12 13 14 15 16       9 10 11 12 13 14 15
20 21 22 23 24 25 26      17 18 19 20 21 22 23      16 17 18 19 20 21 22
27 28 29 30 31            24 25 26 27 28 29         23 24 25 26 27 28 29
                                                    30 31

       April                      May                       June
Mo Tu We Th Fr Sa Su      Mo Tu We Th Fr Sa Su      Mo Tu We Th Fr Sa Su
       1  2  3  4  5                   1  2  3       1  2  3  4  5  6  7
 6  7  8  9 10 11 12       4  5  6  7  8  9 10       8  9 10 11 12 13 14
13 14 15 16 17 18 19      11 12 13 14 15 16 17      15 16 17 18 19 20 21
20 21 22 23 24 25 26      18 19 20 21 22 23 24      22 23 24 25 26 27 28
27 28 29 30               25 26 27 28 29 30 31      29 30

        July                     August                  September
Mo Tu We Th Fr Sa Su      Mo Tu We Th Fr Sa Su      Mo Tu We Th Fr Sa Su
       1  2  3  4  5                      1  2          1  2  3  4  5  6
 6  7  8  9 10 11 12       3  4  5  6  7  8  9       7  8  9 10 11 12 13
13 14 15 16 17 18 19      10 11 12 13 14 15 16      14 15 16 17 18 19 20
20 21 22 23 24 25 26      17 18 19 20 21 22 23      21 22 23 24 25 26 27
27 28 29 30 31            24 25 26 27 28 29 30      28 29 30
                          31

      October                   November                  December
Mo Tu We Th Fr Sa Su      Mo Tu We Th Fr Sa Su      Mo Tu We Th Fr Sa Su
          1  2  3  4                         1          1  2  3  4  5  6
 5  6  7  8  9 10 11       2  3  4  5  6  7  8       7  8  9 10 11 12 13
12 13 14 15 16 17 18       9 10 11 12 13 14 15      14 15 16 17 18 19 20
19 20 21 22 23 24 25      16 17 18 19 20 21 22      21 22 23 24 25 26 27
26 27 28 29 30 31         23 24 25 26 27 28 29      28 29 30 31
                          30

print(calendar.calendar(
    2020,
    c=3, # 月の間のスペースの数
    m=4  # 1行に出力する月の数
))

                                           2020

      January                February                March                  April
Mo Tu We Th Fr Sa Su   Mo Tu We Th Fr Sa Su   Mo Tu We Th Fr Sa Su   Mo Tu We Th Fr Sa Su
       1  2  3  4  5                   1  2                      1          1  2  3  4  5
 6  7  8  9 10 11 12    3  4  5  6  7  8  9    2  3  4  5  6  7  8    6  7  8  9 10 11 12
13 14 15 16 17 18 19   10 11 12 13 14 15 16    9 10 11 12 13 14 15   13 14 15 16 17 18 19
20 21 22 23 24 25 26   17 18 19 20 21 22 23   16 17 18 19 20 21 22   20 21 22 23 24 25 26
27 28 29 30 31         24 25 26 27 28 29      23 24 25 26 27 28 29   27 28 29 30
                                              30 31

        May                    June                   July                  August
Mo Tu We Th Fr Sa Su   Mo Tu We Th Fr Sa Su   Mo Tu We Th Fr Sa Su   Mo Tu We Th Fr Sa Su
             1  2  3    1  2  3  4  5  6  7          1  2  3  4  5                   1  2
 4  5  6  7  8  9 10    8  9 10 11 12 13 14    6  7  8  9 10 11 12    3  4  5  6  7  8  9
11 12 13 14 15 16 17   15 16 17 18 19 20 21   13 14 15 16 17 18 19   10 11 12 13 14 15 16
18 19 20 21 22 23 24   22 23 24 25 26 27 28   20 21 22 23 24 25 26   17 18 19 20 21 22 23
25 26 27 28 29 30 31   29 30                  27 28 29 30 31         24 25 26 27 28 29 30
                                                                     31

     September               October                November               December
Mo Tu We Th Fr Sa Su   Mo Tu We Th Fr Sa Su   Mo Tu We Th Fr Sa Su   Mo Tu We Th Fr Sa Su
    1  2  3  4  5  6             1  2  3  4                      1       1  2  3  4  5  6
 7  8  9 10 11 12 13    5  6  7  8  9 10 11    2  3  4  5  6  7  8    7  8  9 10 11 12 13
14 15 16 17 18 19 20   12 13 14 15 16 17 18    9 10 11 12 13 14 15   14 15 16 17 18 19 20
21 22 23 24 25 26 27   19 20 21 22 23 24 25   16 17 18 19 20 21 22   21 22 23 24 25 26 27
28 29 30               26 27 28 29 30 31      23 24 25 26 27 28 29   28 29 30 31
                                              30

prcal()

import calendar

calendar.prcal(2020)

                                  2020

      January                   February                   March
Mo Tu We Th Fr Sa Su      Mo Tu We Th Fr Sa Su      Mo Tu We Th Fr Sa Su
       1  2  3  4  5                      1  2                         1
 6  7  8  9 10 11 12       3  4  5  6  7  8  9       2  3  4  5  6  7  8
13 14 15 16 17 18 19      10 11 12 13 14 15 16       9 10 11 12 13 14 15
20 21 22 23 24 25 26      17 18 19 20 21 22 23      16 17 18 19 20 21 22
27 28 29 30 31            24 25 26 27 28 29         23 24 25 26 27 28 29
                                                    30 31

       April                      May                       June
Mo Tu We Th Fr Sa Su      Mo Tu We Th Fr Sa Su      Mo Tu We Th Fr Sa Su
       1  2  3  4  5                   1  2  3       1  2  3  4  5  6  7
 6  7  8  9 10 11 12       4  5  6  7  8  9 10       8  9 10 11 12 13 14
13 14 15 16 17 18 19      11 12 13 14 15 16 17      15 16 17 18 19 20 21
20 21 22 23 24 25 26      18 19 20 21 22 23 24      22 23 24 25 26 27 28
27 28 29 30               25 26 27 28 29 30 31      29 30

        July                     August                  September
Mo Tu We Th Fr Sa Su      Mo Tu We Th Fr Sa Su      Mo Tu We Th Fr Sa Su
       1  2  3  4  5                      1  2          1  2  3  4  5  6
 6  7  8  9 10 11 12       3  4  5  6  7  8  9       7  8  9 10 11 12 13
13 14 15 16 17 18 19      10 11 12 13 14 15 16      14 15 16 17 18 19 20
20 21 22 23 24 25 26      17 18 19 20 21 22 23      21 22 23 24 25 26 27
27 28 29 30 31            24 25 26 27 28 29 30      28 29 30
                          31

      October                   November                  December
Mo Tu We Th Fr Sa Su      Mo Tu We Th Fr Sa Su      Mo Tu We Th Fr Sa Su
          1  2  3  4                         1          1  2  3  4  5  6
 5  6  7  8  9 10 11       2  3  4  5  6  7  8       7  8  9 10 11 12 13
12 13 14 15 16 17 18       9 10 11 12 13 14 15      14 15 16 17 18 19 20
19 20 21 22 23 24 25      16 17 18 19 20 21 22      21 22 23 24 25 26 27
26 27 28 29 30 31         23 24 25 26 27 28 29      28 29 30 31
                          30

monthcalendar

import calendar

calendar.monthcalendar(2020, 11)

[[0, 0, 0, 0, 0, 0, 1],
 [2, 3, 4, 5, 6, 7, 8],
 [9, 10, 11, 12, 13, 14, 15],
 [16, 17, 18, 19, 20, 21, 22],
 [23, 24, 25, 26, 27, 28, 29],
 [30, 0, 0, 0, 0, 0, 0]]

長さは一ヶ月何週間あるのを示す
月曜日は一週間のスタート
ない日は0で表示

週の始まりの曜日を設定

import calendar

calendar.setfirstweekday(calendar.SUNDAY)
print(calendar.month(2020, 12))

   December 2020
Su Mo Tu We Th Fr Sa
       1  2  3  4  5
 6  7  8  9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26
27 28 29 30 31

ロケールを変更して曜日の文字列を変更

ltc_ja = calendar.LocaleTextCalendar(locale="ja_JP") # 全角文字の幅は考慮されておらず、日本語の場合はレイアウトが崩れてしまう
print(ltc_ja.formatmonth(2020, 11, w=4))

             11月 2020
 月    火    水    木    金    土    日
                                1
  2    3    4    5    6    7    8
  9   10   11   12   13   14   15
 16   17   18   19   20   21   22
 23   24   25   26   27   28   29
 30

HTMLCalendar

import calendar

c = calendar.HTMLCalendar()
print(c.formatmonth(2020, 12))

<table border="0" cellpadding="0" cellspacing="0" class="month">
<tr><th colspan="7" class="month">December 2020</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">&nbsp;</td><td class="tue">1</td><td class="wed">2</td><td class="thu">3</td><td class="fri">4</td><td class="sat">5</td><td class="sun">6</td></tr>
<tr><td class="mon">7</td><td class="tue">8</td><td class="wed">9</td><td class="thu">10</td><td class="fri">11</td><td class="sat">12</td><td class="sun">13</td></tr>
<tr><td class="mon">14</td><td class="tue">15</td><td class="wed">16</td><td class="thu">17</td><td class="fri">18</td><td class="sat">19</td><td class="sun">20</td></tr>
<tr><td class="mon">21</td><td class="tue">22</td><td class="wed">23</td><td class="thu">24</td><td class="fri">25</td><td class="sat">26</td><td class="sun">27</td></tr>
<tr><td class="mon">28</td><td class="tue">29</td><td class="wed">30</td><td class="thu">31</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td></tr>
</table>

タプルのリスト

import calendar

c = calendar.TextCalendar()
c.monthdays2calendar(2020, 11) # 各タプルは(日付, 曜日)の値を持つ,存在しない日付は0

[[(0, 0), (0, 1), (0, 2), (0, 3), (0, 4), (0, 5), (1, 6)],
 [(2, 0), (3, 1), (4, 2), (5, 3), (6, 4), (7, 5), (8, 6)],
 [(9, 0), (10, 1), (11, 2), (12, 3), (13, 4), (14, 5), (15, 6)],
 [(16, 0), (17, 1), (18, 2), (19, 3), (20, 4), (21, 5), (22, 6)],
 [(23, 0), (24, 1), (25, 2), (26, 3), (27, 4), (28, 5), (29, 6)],
 [(30, 0), (0, 1), (0, 2), (0, 3), (0, 4), (0, 5), (0, 6)]]

c.yeardays2calendar(2020) # 年間

[[[[(0, 0), (0, 1), (1, 2), (2, 3), (3, 4), (4, 5), (5, 6)],
   [(6, 0), (7, 1), (8, 2), (9, 3), (10, 4), (11, 5), (12, 6)],
   [(13, 0), (14, 1), (15, 2), (16, 3), (17, 4), (18, 5), (19, 6)],
   [(20, 0), (21, 1), (22, 2), (23, 3), (24, 4), (25, 5), (26, 6)],
   [(27, 0), (28, 1), (29, 2), (30, 3), (31, 4), (0, 5), (0, 6)]],
  [[(0, 0), (0, 1), (0, 2), (0, 3), (0, 4), (1, 5), (2, 6)],
   [(3, 0), (4, 1), (5, 2), (6, 3), (7, 4), (8, 5), (9, 6)],
   [(10, 0), (11, 1), (12, 2), (13, 3), (14, 4), (15, 5), (16, 6)],
   [(17, 0), (18, 1), (19, 2), (20, 3), (21, 4), (22, 5), (23, 6)],
   [(24, 0), (25, 1), (26, 2), (27, 3), (28, 4), (29, 5), (0, 6)]],
  [[(0, 0), (0, 1), (0, 2), (0, 3), (0, 4), (0, 5), (1, 6)],
   [(2, 0), (3, 1), (4, 2), (5, 3), (6, 4), (7, 5), (8, 6)],
   [(9, 0), (10, 1), (11, 2), (12, 3), (13, 4), (14, 5), (15, 6)],
   [(16, 0), (17, 1), (18, 2), (19, 3), (20, 4), (21, 5), (22, 6)],
   [(23, 0), (24, 1), (25, 2), (26, 3), (27, 4), (28, 5), (29, 6)],
   [(30, 0), (31, 1), (0, 2), (0, 3), (0, 4), (0, 5), (0, 6)]]],
 [[[(0, 0), (0, 1), (1, 2), (2, 3), (3, 4), (4, 5), (5, 6)],
   [(6, 0), (7, 1), (8, 2), (9, 3), (10, 4), (11, 5), (12, 6)],
   [(13, 0), (14, 1), (15, 2), (16, 3), (17, 4), (18, 5), (19, 6)],
   [(20, 0), (21, 1), (22, 2), (23, 3), (24, 4), (25, 5), (26, 6)],
   [(27, 0), (28, 1), (29, 2), (30, 3), (0, 4), (0, 5), (0, 6)]],
  [[(0, 0), (0, 1), (0, 2), (0, 3), (1, 4), (2, 5), (3, 6)],
   [(4, 0), (5, 1), (6, 2), (7, 3), (8, 4), (9, 5), (10, 6)],
   [(11, 0), (12, 1), (13, 2), (14, 3), (15, 4), (16, 5), (17, 6)],
   [(18, 0), (19, 1), (20, 2), (21, 3), (22, 4), (23, 5), (24, 6)],
   [(25, 0), (26, 1), (27, 2), (28, 3), (29, 4), (30, 5), (31, 6)]],
  [[(1, 0), (2, 1), (3, 2), (4, 3), (5, 4), (6, 5), (7, 6)],
   [(8, 0), (9, 1), (10, 2), (11, 3), (12, 4), (13, 5), (14, 6)],
   [(15, 0), (16, 1), (17, 2), (18, 3), (19, 4), (20, 5), (21, 6)],
   [(22, 0), (23, 1), (24, 2), (25, 3), (26, 4), (27, 5), (28, 6)],
   [(29, 0), (30, 1), (0, 2), (0, 3), (0, 4), (0, 5), (0, 6)]]],
 [[[(0, 0), (0, 1), (1, 2), (2, 3), (3, 4), (4, 5), (5, 6)],
   [(6, 0), (7, 1), (8, 2), (9, 3), (10, 4), (11, 5), (12, 6)],
   [(13, 0), (14, 1), (15, 2), (16, 3), (17, 4), (18, 5), (19, 6)],
   [(20, 0), (21, 1), (22, 2), (23, 3), (24, 4), (25, 5), (26, 6)],
   [(27, 0), (28, 1), (29, 2), (30, 3), (31, 4), (0, 5), (0, 6)]],
  [[(0, 0), (0, 1), (0, 2), (0, 3), (0, 4), (1, 5), (2, 6)],
   [(3, 0), (4, 1), (5, 2), (6, 3), (7, 4), (8, 5), (9, 6)],
   [(10, 0), (11, 1), (12, 2), (13, 3), (14, 4), (15, 5), (16, 6)],
   [(17, 0), (18, 1), (19, 2), (20, 3), (21, 4), (22, 5), (23, 6)],
   [(24, 0), (25, 1), (26, 2), (27, 3), (28, 4), (29, 5), (30, 6)],
   [(31, 0), (0, 1), (0, 2), (0, 3), (0, 4), (0, 5), (0, 6)]],
  [[(0, 0), (1, 1), (2, 2), (3, 3), (4, 4), (5, 5), (6, 6)],
   [(7, 0), (8, 1), (9, 2), (10, 3), (11, 4), (12, 5), (13, 6)],
   [(14, 0), (15, 1), (16, 2), (17, 3), (18, 4), (19, 5), (20, 6)],
   [(21, 0), (22, 1), (23, 2), (24, 3), (25, 4), (26, 5), (27, 6)],
   [(28, 0), (29, 1), (30, 2), (0, 3), (0, 4), (0, 5), (0, 6)]]],
 [[[(0, 0), (0, 1), (0, 2), (1, 3), (2, 4), (3, 5), (4, 6)],
   [(5, 0), (6, 1), (7, 2), (8, 3), (9, 4), (10, 5), (11, 6)],
   [(12, 0), (13, 1), (14, 2), (15, 3), (16, 4), (17, 5), (18, 6)],
   [(19, 0), (20, 1), (21, 2), (22, 3), (23, 4), (24, 5), (25, 6)],
   [(26, 0), (27, 1), (28, 2), (29, 3), (30, 4), (31, 5), (0, 6)]],
  [[(0, 0), (0, 1), (0, 2), (0, 3), (0, 4), (0, 5), (1, 6)],
   [(2, 0), (3, 1), (4, 2), (5, 3), (6, 4), (7, 5), (8, 6)],
   [(9, 0), (10, 1), (11, 2), (12, 3), (13, 4), (14, 5), (15, 6)],
   [(16, 0), (17, 1), (18, 2), (19, 3), (20, 4), (21, 5), (22, 6)],
   [(23, 0), (24, 1), (25, 2), (26, 3), (27, 4), (28, 5), (29, 6)],
   [(30, 0), (0, 1), (0, 2), (0, 3), (0, 4), (0, 5), (0, 6)]],
  [[(0, 0), (1, 1), (2, 2), (3, 3), (4, 4), (5, 5), (6, 6)],
   [(7, 0), (8, 1), (9, 2), (10, 3), (11, 4), (12, 5), (13, 6)],
   [(14, 0), (15, 1), (16, 2), (17, 3), (18, 4), (19, 5), (20, 6)],
   [(21, 0), (22, 1), (23, 2), (24, 3), (25, 4), (26, 5), (27, 6)],
   [(28, 0), (29, 1), (30, 2), (31, 3), (0, 4), (0, 5), (0, 6)]]]]

datetime.dateのリスト

import calendar

c = calendar.Calendar()
c.monthdatescalendar(2020, 12)

[[datetime.date(2020, 11, 30),
  datetime.date(2020, 12, 1),
  datetime.date(2020, 12, 2),
  datetime.date(2020, 12, 3),
  datetime.date(2020, 12, 4),
  datetime.date(2020, 12, 5),
  datetime.date(2020, 12, 6)],
 [datetime.date(2020, 12, 7),
  datetime.date(2020, 12, 8),
  datetime.date(2020, 12, 9),
  datetime.date(2020, 12, 10),
  datetime.date(2020, 12, 11),
  datetime.date(2020, 12, 12),
  datetime.date(2020, 12, 13)],
 [datetime.date(2020, 12, 14),
  datetime.date(2020, 12, 15),
  datetime.date(2020, 12, 16),
  datetime.date(2020, 12, 17),
  datetime.date(2020, 12, 18),
  datetime.date(2020, 12, 19),
  datetime.date(2020, 12, 20)],
 [datetime.date(2020, 12, 21),
  datetime.date(2020, 12, 22),
  datetime.date(2020, 12, 23),
  datetime.date(2020, 12, 24),
  datetime.date(2020, 12, 25),
  datetime.date(2020, 12, 26),
  datetime.date(2020, 12, 27)],
 [datetime.date(2020, 12, 28),
  datetime.date(2020, 12, 29),
  datetime.date(2020, 12, 30),
  datetime.date(2020, 12, 31),
  datetime.date(2021, 1, 1),
  datetime.date(2021, 1, 2),
  datetime.date(2021, 1, 3)]]

コマンドライン

```python
>>> python3 -m calendar 2020 12
   December 2020
Mo Tu We Th Fr Sa Su
    1  2  3  4  5  6
 7  8  9 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30 31

```