Python一共支持多少字符集？這里有個列表

{'ascii', 'base64-codec', 'big5', 'big5hkscs', 'bz2-codec', 'charmap', 'cp037', 'cp1006', 'cp1026', 'cp1140', 'cp1250', 'cp1251', 'cp1252', 'cp1253', 'cp1254', 'cp1255', 'cp1256', 'cp1257', 'cp1258', 'cp1361', 'cp367', 'cp424', 'cp437', 'cp500', 'cp720', 'cp737', 'cp775', 'cp819', 'cp850', 'cp852', 'cp855', 'cp856', 'cp857', 'cp858', 'cp860', 'cp861', 'cp862', 'cp863', 'cp864', 'cp865', 'cp866', 'cp869', 'cp874', 'cp875', 'cp932', 'cp936', 'cp949', 'cp950', 'euc-jis-2004', 'euc-jisx0213', 'euc-jp', 'euc-kr', 'gb18030', 'gb2312', 'gbk', 'hex-codec', 'hp-roman8', 'hz', 'idna', 'iso2022-jp', 'iso2022-jp-1', 'iso2022-jp-2', 'iso2022-jp-2004', 'iso2022-jp-3', 'iso2022-jp-ext', 'iso2022-kr', 'iso8859-1', 'iso8859-10', 'iso8859-11', 'iso8859-13', 'iso8859-14', 'iso8859-15', 'iso8859-16', 'iso8859-2', 'iso8859-3', 'iso8859-4', 'iso8859-5', 'iso8859-6', 'iso8859-7', 'iso8859-8', 'iso8859-9', 'johab', 'koi8-r', 'koi8-u', 'latin-1', 'mac-arabic', 'mac-centeuro', 'mac-croatian', 'mac-cyrillic', 'mac-farsi', 'mac-greek', 'mac-iceland', 'mac-latin2', 'mac-roman', 'mac-romanian', 'mac-turkish', 'mbcs', 'palmos', 'ptcp154', 'punycode', 'quopri-codec', 'raw-unicode-escape', 'rot-13', 'shift-jis', 'shift-jis-2004', 'shift-jisx0213', 'tis-620', 'unicode-escape', 'unicode-internal', 'utf-16', 'utf-16-be', 'utf-16-le', 'utf-32', 'utf-32-be', 'utf-32-le', 'utf-7', 'utf-8', 'utf-8-sig', 'uu-codec', 'zlib-codec'}

這些編碼中，有多少是和ascii 兼容的？

我把printable ascii 字符用上述編碼都encode一遍看看。。

s=T.printAscii

r=[];re=[]

for i in T.gcoding:

try:

r.append([i,s.encode(i) ])

except Exception as e:

re.append([i,e])

Out[60]: [118 通過, 2 錯誤, 120 總數]

In [61]: re

Out[61]:

[['cp864',

UnicodeEncodeError('charmap',

u' !"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~',

5,

6,

'character maps to ')],

['idna', UnicodeError('label empty or too long')]]

In [62]: [i[0] for i in _]

Out[62]: ['cp864', 'idna']

ascii 數值 是處于 32-126 之間的，我再把編碼后的去除非ascii字符

rs=[]

for i in r:

rs.append([i[0],''])

for c in i[1]:

if not 31

rs[-1][-1]+=c

ri=[len(i[1]) for i in rs]

data = pd.Series(ri)

data.plot.hist()

plt.show()

總結

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