[docs] [issue20686] Confusing statement about unicode strings in tutorial introduction

20 Mar 2014

      Daniel U. Thibault added the comment:
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mystring="äöü"
myustring=u"äöü"
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mystring
'\xc3\xa4\xc3\xb6\xc3\xbc'
myustring
u'\xe4\xf6\xfc'
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str(mystring)
'\xc3\xa4\xc3\xb6\xc3\xbc'
str(myustring)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
UnicodeEncodeError: 'ascii' codec can't encode characters in position 0-2: ordinal not in range(128)
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f = open('workfile', 'w')
f.write(mystring)
f.close()
f = open('workufile', 'w')
f.write(myustring)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
UnicodeEncodeError: 'ascii' codec can't encode characters in position 0-2: ordinal not in range(128)
f.close()
workfile contains C3 A4 C3 B6 C3 BC

So the Unicode string (myustring) does indeed try to convert to ASCII when written to file. But not when just printed.

It seems really strange that non-Unicode strings (mystring) should actually be more flexible than Unicode strings...

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Python tracker 
http://bugs.python.org/issue20686
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