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Replacing many characters in a string with Python
In order to replace a character in a string with Python replace command can be used easily: str.replace(old, new[, count])
[return a copy of the string with all occurrences of substring old replaced by new. If the optional argument count is given, only the first count occurrences are replaced.]
But if we want to change more than one character then we have to do it differently. A nice solution I found at Gomputor’s blog is by defining a function like this:
def replace_all(text, dic):
for i, j in dic.iteritems():
text = text.replace(i, j)
return textSo then we just have to give our string (text) and the list of changes (dic) like:st = '2011-05-23T22:31:35'
chgs = {'-':'','T':'.',':':''}
and use that function: >>>print st, replace_all(st,chgs)
2011-05-23T22:31:35 20110523.223135
