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Process each word in a sentence

Question

Find words in the sentence and process each word.

Solution

.. literalinclude:: ../../languages/python/files_processing_every_word.py
   :language: python
   :tab-width: 4


.. runcode:: ../../languages/python/files_processing_every_word.py
   :language: python
   :codesite: ideone

Explanation

The program creates a REGEX for matching words and uses regex.finditer(line) to find all the words matching the regular expression in a line.

Running the program over itself produces the output like this.

import
re
WORD_REGEX
re
compile
r
w'-
def
do_something_with_word
word
print
word
def
words_in_file
file_name
with
open
file_name
as
fh
for
line
in
fh
for
word
in
WORD_REGEX
finditer
line
do_something_with_word
word
group
0
def
main
words_in_file
'
files_processing_every_word
py'
if
__name__
'__main__'
main

.. seealso::

   * :python-suggest-improve:`files_processing_every_word.py`
   * :python-better-explain:`files_processing_every_word.rst`