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BUG: Fix for .str.replace with repl function #15056

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BUG: Fix for .str.replace with repl function #15056

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6ecc43d
BUG: Fix for .str.replace with repl function
Jan 4, 2017
91c883d
Update .str.replace docstring
Jan 4, 2017
4baa0a7
add tests for .str.replace with callable repl
Jan 4, 2017
30d4727
Bug fix in .str.replace type checking done wrong
Jan 5, 2017
067a7a8
Fix testing bug for .str.replace
Jan 6, 2017
ae04a3e
Add whatsnew for .str.replace with callable repl
Jan 6, 2017
27065a2
Reraise TypeError only with wrong number of args
Jan 6, 2017
14beb21
Add test for .str.replace with regex named groups
Jan 6, 2017
f15ee2a
improve test .str.replace with callable
Jan 22, 2017
40c0d97
improve .str.replace with callable
Jan 23, 2017
e15dcdf
fix bug catch TypeError with wrong number of args
Jan 23, 2017
c2cc13a
Update v0.20.0.txt
Jan 23, 2017
90779ce
fix linting issues
Jan 23, 2017
826730c
simplify .str.replace TypeError reraising and test
Jan 23, 2017
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11 changes: 6 additions & 5 deletions pandas/core/strings.py
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Original file line number Diff line number Diff line change
Expand Up @@ -303,8 +303,9 @@ def str_replace(arr, pat, repl, n=-1, case=True, flags=0):
----------
pat : string
Character sequence or regular expression
repl : string
Replacement sequence
repl : string or function
Replacement string or a function, which passed the match object and
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function -> callable

must return a replacement string to be used. See :func:`re.sub`.
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add the version (0.20.0) after callable

n : int, default -1 (all)
Number of replacements to make from start
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can you add some examples to the doc-string?

also would be nice to have an example in text.rst

case : boolean, default True
Expand All @@ -318,9 +319,9 @@ def str_replace(arr, pat, repl, n=-1, case=True, flags=0):
"""

# Check whether repl is valid (GH 13438)
if not is_string_like(repl):
raise TypeError("repl must be a string")
use_re = not case or len(pat) > 1 or flags
if not is_string_like(repl) or not callable(repl):
raise TypeError("repl must be a string or function")
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function -> callable

use_re = not case or len(pat) > 1 or flags or callable(repl)

if use_re:
if not case:
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