How to remove symbols from a string with Python

Question

I m a beginner with both Python and RegEx  and I would like to know how to make a string that takes symbols and replaces them with spaces  Any help is great   For example   how much for the maple syrup   20 99  That s ricidulous      into   how much for the maple syrup 20 99 That s ridiculous

User · Answer

I often just open the console and look for the solution in the objects methods. Quite often it's already there:

>>> a = "hello ' s"
>>> dir(a)
[ (....) 'partition', 'replace' (....)]
>>> a.replace("'", " ")
'hello   s'

Short answer: Use string.replace().

User · Answer

One way  using regular expressions    gt  gt  gt  s    how much for the maple syrup   20 99  That s ridiculous      gt  gt  gt  re sub r    w         s   how much for the maple syrup   20 99  That s ridiculous         w will match alphanumeric characters and underscores    w  will match anything that s not alphanumeric or underscore

User · Answer

Sometimes it takes longer to figure out the regex than to just write it out in python   import string s    how much for the maple syrup   20 99  That s ricidulous     for char in string punctuation      s   s replace char         If you need other characters you can change it to use a white-list or extend your black-list   Sample white-list   whitelist   string letters   string digits       new s      for char in s      if char in whitelist          new s    char     else          new s          Sample white-list using a generator-expression   whitelist   string letters   string digits       new s      join c for c in s if c in whitelist

[python] How to remove symbols from a string with Python?

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