【Python】chr() 関数の使用例とエラー例

Python の組み込み関数シーエイチアール chr() の『使用例』と『エラー例』です。

chr() に、各種（かくしゅ）オブジェクトを渡しました。

chr() でエラーになったコード例

chr() でエラーになったコード例（れい）です。

Python 公式マニュアル

chr(i)

chr()

Traceback (most recent call last):
    ...
TypeError: chr() takes exactly one argument (0 given)

chr(None)

Traceback (most recent call last):
    ...
TypeError: an integer is required (got type NoneType)

chr(-1)

Traceback (most recent call last):
    ...
ValueError: chr() arg not in range(0x110000)

chr(1114112)

Traceback (most recent call last):
    ...
ValueError: chr() arg not in range(0x110000)

chr(0x110000)

Traceback (most recent call last):
    ...
ValueError: chr() arg not in range(0x110000)

chr(-1.0)

Traceback (most recent call last):
    ...
TypeError: integer argument expected, got float

chr(0.0)

Traceback (most recent call last):
    ...
TypeError: integer argument expected, got float

chr(1.0)

Traceback (most recent call last):
    ...
TypeError: integer argument expected, got float

chr(complex(0.0, 0.0))

Traceback (most recent call last):
    ...
TypeError: can't convert complex to int

chr(complex(0.0, 1.0))

Traceback (most recent call last):
    ...
TypeError: can't convert complex to int

chr(complex(1.0, 0.0))

Traceback (most recent call last):
    ...
TypeError: can't convert complex to int

chr(complex(1.0, 1.0))

Traceback (most recent call last):
    ...
TypeError: can't convert complex to int

chr('')

Traceback (most recent call last):
    ...
TypeError: an integer is required (got type str)

chr('1')

Traceback (most recent call last):
    ...
TypeError: an integer is required (got type str)

chr(())

Traceback (most recent call last):
    ...
TypeError: an integer is required (got type tuple)

chr([])

Traceback (most recent call last):
    ...
TypeError: an integer is required (got type list)

chr(set())

Traceback (most recent call last):
    ...
TypeError: an integer is required (got type set)

chr({})

Traceback (most recent call last):
    ...
TypeError: an integer is required (got type dict)

chr(range(0))

Traceback (most recent call last):
    ...
TypeError: an integer is required (got type range)

chr(b'')

Traceback (most recent call last):
    ...
TypeError: an integer is required (got type bytes)

chr(b'0')

Traceback (most recent call last):
    ...
TypeError: an integer is required (got type bytes)

chr(b'1')

Traceback (most recent call last):
    ...
TypeError: an integer is required (got type bytes)

chr(lambda x: x)

Traceback (most recent call last):
    ...
TypeError: an integer is required (got type function)

import datetime
chr(datetime.datetime.max)

Traceback (most recent call last):
    ...
TypeError: an integer is required (got type datetime.datetime)

import datetime
chr(datetime.date.max)

Traceback (most recent call last):
    ...
TypeError: an integer is required (got type datetime.date)

import datetime
chr(datetime.time.max)

Traceback (most recent call last):
    ...
TypeError: an integer is required (got type datetime.time)

import datetime
chr(datetime.timedelta(0))

Traceback (most recent call last):
    ...
TypeError: an integer is required (got type datetime.timedelta)

chr() に int（10 進数表示）

chr() に、-1 から 1114112 までの値を使用したコード例です。

引数（ひきすう）に 10 進数（しんすう）表示を使いました。

Python 公式マニュアル

class int([x])

整数リテラル

chr(-1)

Traceback (most recent call last):
    ...
ValueError: chr() arg not in range(0x110000)

chr(0)

'\x00'

chr(1)

'\x01'

chr(2)

'\x02'

chr(3)

'\x03'

chr(4)

'\x04'

chr(5)

'\x05'

chr(47)

'/'

chr(48)

'0'

chr(49)

'1'

chr(64)

'@'

chr(65)

'A'

chr(66)

'B'

chr(96)

'`'

chr(97)

'a'

chr(98)

'b'

chr(254)

'þ'

chr(255)

'ÿ'

chr(256)

'Ā'

chr(1114110)

'\U0010fffe'

chr(1114111)

'\U0010ffff'

chr(1114112)

Traceback (most recent call last):
    ...
ValueError: chr() arg not in range(0x110000)

chr() に int（16 進数表示）

chr() に、-0x1 から 0x110000 までの値を使用したコード例です。

引数（ひきすう）に 16 進数（しんすう）表示を使いました。

Python 公式マニュアル

hex(x)

整数リテラル

chr(-0x1)

Traceback (most recent call last):
    ...
ValueError: chr() arg not in range(0x110000)

chr(0x0)

'\x00'

chr(0x1)

'\x01'

chr(0x2)

'\x02'

chr(0x3)

'\x03'

chr(0x4)

'\x04'

chr(0x5)

'\x05'

chr(0x2f)

'/'

chr(0x30)

'0'

chr(0x31)

'1'

chr(0x40)

'@'

chr(0x41)

'A'

chr(0x42)

'B'

chr(0x60)

'`'

chr(0x61)

'a'

chr(0x62)

'b'

chr(0xfe)

'þ'

chr(0xff)

'ÿ'

chr(0x100)

'Ā'

chr(0x10fffe)

'\U0010fffe'

chr(0x10ffff)

'\U0010ffff'

chr(0x110000)

Traceback (most recent call last):
    ...
ValueError: chr() arg not in range(0x110000)