Get the string within brackets in Python

Question

I have a sample string  lt alpha Customer cus Y4o9qMEZAugtnW  active card  lt alpha AlphaObject card      gt   created 1324336085  description  Customer for My Test App   livemode False gt   I only want the value cus Y4o9qMEZAugtnW and NOT card  which is inside another      How could I do it in easiest possible way in Python  Maybe by using RegEx  which I am not good at

User · Answer

your string    lnfgbdgfi343456dsfidf my data  ljfbgns47647jfbgfjbgskj  your string your string find      1   your string find         courtesy  Regular expression to return text between parenthesis

User · Answer

How about this   Example illusrated using a file  f   open  abc log   r   content   f readlines   for line in content      m   re search r quot           quot   line      print m group 1        Hope this helps  Magic regex              Explanation         is a meta char and needs to be escaped if you want to match it literally          match everything in a non-greedy way and capture it         is a meta char and needs to be escaped if you want to match it literally

User · Answer

You could use str split to do this   s     lt alpha Customer cus Y4o9qMEZAugtnW  active card  lt alpha AlphaObject card        gt   created 1324336085  description  Customer for My Test App     livemode False gt   val   s split      1  1  split      0    Then we have    gt  gt  gt  val  cus Y4o9qMEZAugtnW

User · Answer

This should do the job   re match r                    yourstring  groups   0

User · Answer

You can use  import re  s   re search r          string  if s      print s group 0

User · Answer

You can also use  re findall r     A-Za-z0-9         string    if there are many occurrences that you would like to find    See also for more info  How can I find all matches to a regular expression in Python

User · Answer

How about   import re  s    alpha Customer cus Y4o9qMEZAugtnW       m   re search r     A-Za-z0-9         s  print m group 1    For me this prints   cus Y4o9qMEZAugtnW   Note that the call to re search      finds the first match to the regular expression  so it doesn t find the  card  unless you repeat the search a second time   Edit  The regular expression here is a python raw string literal  which basically means the backslashes are not treated as special characters and are passed through to the re search   method unchanged  The parts of the regular expression are       matches a literal   character   begins a new group  A-Za-z0-9   is a character set matching any letter  capital or lower case   digit or underscore   matches the preceding element  the character set  one or more times    ends the group    matches a literal   character   Edit  As D K has pointed out  the regular expression could be simplified to   m   re search r     w       s    since the  w is a special sequence which means the same thing as  a-zA-Z0-9   depending on the re LOCALE and re UNICODE settings

[python] Get the string within brackets in Python

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