re.findall not returning full match?

by

The problem you have is that if the regex that re.findall tries to match captures groups (i.e. the portions of the regex that are enclosed in parentheses), then it is the groups that are returned, rather than the matched string.

One way to solve this issue is to use non-capturing groups (prefixed with ?:).

>>> import re
>>> s="size=50;size=51;"
>>> re.findall('size=(?:50|51);', s)
['size=50;', 'size=51;']

If the regex that re.findall tries to match does not capture anything, it returns the whole of the matched string.

Although using character classes might be the simplest option in this particular case, non-capturing groups provide a more general solution.

More Related Contents:

  1. How t extract last part of a text in python [duplicate]
  2. re.sub replace with matched content
  3. How to grab number after word in python
  4. Regular expression doesn't produce expected result
  5. re.findall behaves weird
  6. Do regular expressions from the re module support word boundaries (\b)?
  7. Python extract pattern matches
  8. Split a string by spaces — preserving quoted substrings — in Python
  9. Does “\d” in regex mean a digit?
  10. Remove all special characters, punctuation and spaces from string
  11. How to filter rows in pandas by regex
  12. Use Python’s string.replace vs re.sub
  13. Natural sorting
  14. re.sub erroring with “Expected string or bytes-like object”
  15. Can’t use ‘\1’ backreference to capture-group in a function call in re.sub() repr expression
  16. BeautifulSoup returns empty list when searching by compound class names
  17. What does the “r” in pythons re.compile(r’ pattern flags’) mean?
  18. Python regex to match dates
  19. regexes: How to access multiple matches of a group? [duplicate]
  20. Do Python regular expressions have an equivalent to Ruby’s atomic grouping?
  21. Finding words after keyword in python [duplicate]
  22. Grep and Python
  23. re.search() only matches the first occurrence
  24. How to get the first word in the string
  25. Python: UserWarning: This pattern has match groups. To actually get the groups, use str.extract
  26. Generate a String that matches a RegEx in Python [duplicate]
  27. Split string at commas except when in bracket environment
  28. Using ^ to match beginning of line in Python regex
  29. How to split long regular expression rules to multiple lines in Python
  30. Python regular expression not matching

Leave a Comment