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I can't seem to find a good resource on this.. I am trying to do a simple re.place
I want to replace the part where its (.*?), but can't figure out the syntax on how to do this.. I know how to do it in PHP, so I've been messing around with what I think it could be based on that (which is why it has the $1 but I know that isn't correct in python).. I would appreciate if anyone can show the proper syntax, I'm not asking specifics for any certain string, just how I can replace something like this, or if it had more than 1 () area.. thanks
originalstring = 'fksf var:asfkj;'
pattern = '.*?var:(.*?);'
replacement_string='$1' + 'test'
replaced = re.sub(re.compile(pattern, re.MULTILINE), replacement_string, originalstring)
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So in your case, you could make a dict trans = {"a": "aa", "b": "bb"} and then pass it into multiple_replace along with the text you want translated. Basically all that function is doing is creating one huge regex containing all of your regexes to translate, then when one is found, passing a lambda function to regex.
There is no method to replace multiple different strings with different ones, but you can apply replace() repeatedly. It just calls replace() in order, so if the first new contains the following old , the first new is also replaced.
sub() method will replace all pattern occurrences in the target string. By setting the count=1 inside a re. sub() we can replace only the first occurrence of a pattern in the target string with another string. Set the count value to the number of replacements you want to perform.
To replace multiple values in a DataFrame we can apply the method DataFrame. replace(). In Pandas DataFrame replace method is used to replace values within a dataframe object.
>>> import re
>>> originalstring = 'fksf var:asfkj;'
>>> pattern = '.*?var:(.*?);'
>>> pattern_obj = re.compile(pattern, re.MULTILINE)
>>> replacement_string="\\1" + 'test'
>>> pattern_obj.sub(replacement_string, originalstring)
'asfkjtest'
Edit: The Python Docs can be pretty useful reference.
50
>>> import re
>>> regex = re.compile(r".*?var:(.*?);")
>>> regex.sub(r"\1test", "fksf var:asfkj;")
'asfkjtest'
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