python-textops3 3.2.1

Python text operations module

python-textops3 provides many text operations at string level, list level or whole text level.

These operations can be chained with a ‘dotted’ or ‘piped’ notation.

Chained operations are stored into a single lazy object, they will be executed only when an input text will be provided.

Install

To install:

pip install python-textops3

Overview

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'}]

Examples

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

Documentation

Please, read documentation here :

News

3.2.1 (2022-03-31)

• add Python 3.10 support

3.1.0 (2020-06-25)

• add TupleExt

• DictExt now support pickle

3.0.8 (2019-10-08)

• add encoding & encoding_errors arguments to cat()

3.0.7 (2019-10-01)

• add separators argument to parse_smart()

3.0.6 (2019-09-25)

• add key_filter argument to parse_smart()

3.0.5 (2019-06-14)

• add decode_bytes()

3.0.3 (2018-11-07)

• Migrate from python 2 to python 3