pythonp 0.0.0

It does what `python -c` does and a few more

What is pythonp?

pythonp is a simple utility script that helps you using python on the command line. Basically, it's a python -c command with a handy print function p. See examples below to see how convenient it can be.

How to install

You can install it via pip

python -m pip install pythonp

or you can simply download this repository and copy __main__.py to one of your $PATH locations

cp pythonp/__main__.py ...../pythonp

Handy global variables defined

p

A handy print function with commandline usage in mind. It has the same interface as the default print function except that it specially handles a single iterable as an argument, in which case it prints as many times as the number of elements in the iterable. Giving extra positional arguments along with an iterable is not allowed.

lines

Standard input lines where each line ends with a newline character. You can think of it as sys.stdin except that it's subscriptable and allows a one-time random access, which means you can do something lines[3], lines[10:].

_lines

Lazy evaluted non-stream-like version of lines. Becuase it's a collections.abc.Sequence, you can access its lines multiple times, reverse it, do inclusion test on it, and so forth. The lines are not prepared until you actually use it to save up memory.

Examples

Print numbers

$ pythonp 'p(range(3))'
0
1
2

Get files whose names are longer than 5

$ ls | pythonp "p((l for l in lines if len(l)>5), end='')"
LICENSE
README.md
pythonp
setup.py

Concatenate filenames

$ ls | pythonp "p((l.strip() for l in lines if not 'bombs' in l), end=',')"
LICENSE,README.md,pythonp,setup.py,

Get the 4th column of the processs status

$ ps | pythonp 'p(l.split()[3] for l in lines[1:])'
/usr/local/bin/fish
-fish
python3
ssh

You can also do some crazy stuffs becuase pythonp can do anything that python can do

$ ls | pythonp 'from random import sample; p(sample(_lines, 2))'
$ ls | pythonp 'p(sum(len(l) for l in lines))'
$ cat urls.txt | pythonp 'from requests import get; p(get(url.strip()) for url in lines)'

Misc

• Both python2 and python3 are supported.

• Refer to python officials docs to learn useful string manipulating functions
  https://docs.python.org/3/library/string.html

• It is a good idea to use generator expressions or list comprehensions with pythonp https://docs.python.org/3/howto/functional.html

• If you want some other features, you are always welcome to make an issue, at the issue tab on the top menu.