How to remove all the escape sequences from a list of strings?

by

If you want to strip out some characters you don’t like, you can use the translate function to strip them out:

>>> s="\x01\x02\x10\x13\x20\x21hello world"
>>> print(s)
 !hello world
>>> s
'\x01\x02\x10\x13 !hello world'
>>> escapes="".join([chr(char) for char in range(1, 32)])
>>> t = s.translate(None, escapes)
>>> t
' !hello world'

This will strip out all these control characters:

   001   1     01    SOH (start of heading)
   002   2     02    STX (start of text)
   003   3     03    ETX (end of text)
   004   4     04    EOT (end of transmission)
   005   5     05    ENQ (enquiry)
   006   6     06    ACK (acknowledge)
   007   7     07    BEL '\a' (bell)
   010   8     08    BS  '\b' (backspace)
   011   9     09    HT  '\t' (horizontal tab)
   012   10    0A    LF  '\n' (new line)
   013   11    0B    VT  '\v' (vertical tab)
   014   12    0C    FF  '\f' (form feed)
   015   13    0D    CR  '\r' (carriage ret)
   016   14    0E    SO  (shift out)
   017   15    0F    SI  (shift in)
   020   16    10    DLE (data link escape)
   021   17    11    DC1 (device control 1)
   022   18    12    DC2 (device control 2)
   023   19    13    DC3 (device control 3)
   024   20    14    DC4 (device control 4)
   025   21    15    NAK (negative ack.)
   026   22    16    SYN (synchronous idle)
   027   23    17    ETB (end of trans. blk)
   030   24    18    CAN (cancel)
   031   25    19    EM  (end of medium)
   032   26    1A    SUB (substitute)
   033   27    1B    ESC (escape)
   034   28    1C    FS  (file separator)
   035   29    1D    GS  (group separator)
   036   30    1E    RS  (record separator)
   037   31    1F    US  (unit separator)

For Python newer than 3.1, the sequence is different:

>>> s="\x01\x02\x10\x13\x20\x21hello world"
>>> print(s)
 !hello world
>>> s
'\x01\x02\x10\x13 !hello world'
>>> escapes="".join([chr(char) for char in range(1, 32)])
>>> translator = str.maketrans('', '', escapes)
>>> t = s.translate(translator)
>>> t
' !hello world'

More Related Contents:

  1. Understanding Python super() with __init__() methods [duplicate]
  2. How do you change the size of figures drawn with Matplotlib?
  3. Converting datetime.date to UTC timestamp in Python
  4. clang error: unknown argument: ‘-mno-fused-madd’ (python package installation failure)
  5. Selecting with complex criteria from pandas.DataFrame
  6. Rename a dictionary key
  7. how to clear the screen in python [duplicate]
  8. Can we have assignment in a condition?
  9. PIL: Convert Bytearray to Image
  10. mongodb: insert if not exists
  11. How can I check if code is executed in the IPython notebook?
  12. Sorting Python list based on the length of the string
  13. Use of True, False, and None as return values in Python functions
  14. os.path.dirname(__file__) returns empty
  15. Autoreload of modules in IPython [duplicate]
  16. import win32api error in Python 2.6
  17. django-rest-framework 3.0 create or update in nested serializer
  18. Finding the indices of matching elements in list in Python
  19. Python flask app routing in cpanel: can only access root url
  20. How to calculate time difference by group using pandas?
  21. How to parse a string and return a nested array?
  22. Use python requests to download CSV
  23. How to embed a terminal in a Tkinter application?
  24. How does numpy.histogram() work?
  25. Identifying Excel Sheet cell color code using XLRD package
  26. Relative import in Python 3 is not working [duplicate]
  27. Can’t install pygame on mac
  28. How do I use vi keys in ipython under *nix?
  29. How to warp an image using deformed mesh
  30. Python file.write creating extra carriage return

Leave a Comment