Better scripting with python
Haven't you ever missed writing perl one liners? Or maybe you're more
familiar with python than all the options of
find, but like the text
pyli aims to make it easier to use python and
all it's batteries in conjunction with your favorite hangout: the shell.
pyli is available via
pip install pyli
Or directly via
git clone https://github.com/thenoviceoof/pyli.git cd pyli sudo python setup.py
Let's do some warmups:
pyli "2+2" # bc cat file.txt | pyli "line if 'string' in line else None" # grep cat file.txt | pyli "sum(len(l) + 1 for l in lines)" # wc -m
And now something more complicated:
log | pyli "str(time.time()) + ' ' + line" # time stamping a line cat file.txt | pyli "set(w for s in nltk.sent_tokenize(contents) for w in nltk.word_tokenize)" # bag of words a file cat file.json | pyli "pickle.dumps(json.loads(conts))" >file.pickle cat space_sep.dat | pyli "json.dumps(dict(parts))" >file.json
Maybe it makes sense to separate commands:
cat index.html | pyli "for l in [a.get('href') for a in bs4.BeautifulSoup(cs).find_all('a')]: print l" | pyli --text='something' "r = requests.get(li); li if text in r.text else None" cat index.html | pyli "hashlib.sha1(cs).hexdigest()" | pyli "encryptedfile.EncryptedFile(stdout, getpass.getpass()).write(cs)"
Perhaps you want to keep it a one liner, but Python is too opinionated to let you do that:
pyli -f "`ls -a`" "for l in f.split('\n'):" " if '.git' == l: print 'git'"
- Automatically import referred packages
- Populate special CLI oriented variables
l) - Gives you access to each line
ls) - Access to the
cs) - Gives you access to all of stdin in one string
p) - Gives you access to the different fields of a space-separated line
ps) - Access to the
stderr- A shortcut to
- Accept arbitrary GNU style arguments (-c, --blah), and make them available
- Print last statement; if an assignment, print the value assigned to variable(s)
- If we are using
part, then print the last statement for each line
Do note that you should only access one of these special variables at a time: no work has been put into combining these into something that makes sense, so if you want multiple variables, you'll have to do the legwork yourself.
- Move the engine to the nice-looking
- Make sure it works in more snakes than just 2.7.3 / 2.6.9
Also see the issue tracker
In alphabetical order:
Copyright (c) <2014> <thenoviceoof>
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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