To install:

pip install python-textops3

The usual way to use textops is something like below. IMPORTANT : Note that textops library redefines the python bitwise OR operator '|' in order to use it as a 'pipe' like in a Unix shell:

from textops import *
result = "an input text" | my().chained().operations()
or
for result_item in "an input text" | my().chained().operations():
   do_something(result_item)
or
myops = my().chained().operations()
# and later in the code, use them :
result = myops("an input text")
or
result = "an input text" | myops

An "input text" can be :

• a simple string,
• a multi-line string (one string having newlines),
• a list of strings,
• a strings generator,
• a list of lists (useful when you cut lines into columns),
• a list of dicts (useful when you parse a line).

So one can do:

>>> 'line1line2line3' | grep('2').tolist()
['line1line2line3']
>>> 'line1\nline2\nline3' | grep('2').tolist()
['line2']
>>> ['line1','line2','line3'] | grep('2').tolist()
['line2']
>>> [['line','1'],['line','2'],['line','3']] | grep('2').tolist()
[['line', '2']]
>>> [{'line':1},{'line':'2'},{'line':3}] | grep('2').tolist()
[{'line': '2'}]

Piped then dotted notation (recommended):

>>> print('this is an error\nthis is a warning' | grepi('error').first().upper())
THIS IS AN ERROR

You could use the pipe everywhere (internally a little less optimized, but looks like shell):

>>> print('this is an error\nthis is a warning' | grepi('error') | first() | strop.upper())
THIS IS AN ERROR

To execute an operation directly from strings, lists or dicts with the dotted notation, you must use textops Extended types : StrExt, ListExt or DictExt:

>>> s = StrExt('this is an error\nthis is a warning')
>>> print(s.grepi('error').first().upper())
THIS IS AN ERROR

Please, read documentation here :