Hartmut Goebel a écrit : > Jorge Godoy schrieb: > > >> Change the order. > >> > >>>>> s = u'olá' > >>>>> s += 'mundo' > >>>>> s > >> u'ol\xe1mundo' > >>>>> s = u'leite com ' > >>>>> s += 'café' > >> Traceback (most recent call last): > >> File "<stdin>", line 1, in ? > >> UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position > 3: ordinal not in range(128) > This is indeed the typical very annoying feature I was talking about. In web application, these strings with unicode inside come from the web requests. Why isn't the string class simply replaced by the unicode class? Why 2 classes? > This is correct, since you tell python to add a Unicode-String to an > Asc-String: > s += 'café' > is the same as > s = s + 'café' > Ok, but why is the right string encoded into ascii and not into the same encoding as the left unicode string? Isn't the += operator an unicode method? > BTW: Using string-concationation is bad habbit, since it's slow. One > should prever fthe % operator. > Why would % operator would be faster than string concatenation? There is much less work to do!
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