converting string to tuple

by

You can use ast.literal_eval():

Safely evaluate an expression node or a string containing a Python expression. The string or node provided may only consist of the following Python literal structures: strings, numbers, tuples, lists, dicts, booleans, and None.

This can be used for safely evaluating strings containing Python expressions from untrusted sources without the need to parse the values oneself.

In your example:

from ast import literal_eval
s="(1,2,3,4,5),(5,4,3,2,1)"

l = literal_eval(s)
print l
# ((1, 2, 3, 4, 5), (5, 4, 3, 2, 1))

print [(x[0], x[-1]) for x in l]
# [(1, 5), (5, 1)]

More Related Contents:

  1. Python convert tuple to string
  2. Split a string to even sized chunks
  3. Why are python strings and tuples are made immutable?
  4. Convert a columns of string to list in pandas
  5. How does str.startswith really work?
  6. Concatenate elements of a tuple in a list in python [duplicate]
  7. How t extract last part of a text in python [duplicate]
  8. how to unpack a tuple in this form (‘abc’, [20, 20])? [closed]
  9. Filter pandas DataFrame by substring criteria
  10. Why do backslashes appear twice?
  11. Changing one character in a string
  12. Converting a string representation of a list into an actual list object [duplicate]
  13. Why can tuples contain mutable items?
  14. using backslash in python (not to escape)
  15. Pandas Extract Number from String
  16. Find substring in string but only if whole words?
  17. How to convert a list to a list of tuples?
  18. Count number of words per row
  19. Why can’t I end a raw string with a backslash? [duplicate]
  20. Why empty string is on every string? [duplicate]
  21. Is there a native templating system for plain text files in Python?
  22. Python: is using “..%(var)s..” % locals() a good practice?
  23. Does Python have an immutable list?
  24. What does “table” in the string.translate function mean?
  25. python – get list of tuples first index?
  26. Is there a better way to find if string contains digits? [duplicate]
  27. Copy text between parentheses in pandas DataFrame column into another column
  28. Splitting a math expression string into tokens in Python
  29. How can I pad a string with spaces from the right and left? [duplicate]
  30. pandas combine two strings ignore nan values

Leave a Comment