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Better python CLI integration

Project description

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 interaction paradigm? pyli aims to make it easier to use python and all it’s batteries in conjunction with your favorite hangout: the shell.

Examples

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) 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

Maybe it makes sense to separate commands:

cat index.html | pyli "a.get('href') for a in bs4.BeautifulSoup(cs).find_all('a')" | 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)"

pyli

Features:

  • Automatically import referred packages
  • Populate special CLI oriented variables
    • line (li, l)
    • lines (lis, ls)
    • contents (cont, cs)
    • stdin, stdout, stderr
    • Accept arbitrary GNU style arguments (-c, –blah), and make them available
    • Print last statement; if an assignment, print the assigned to variables
    • If we are using line, then print the last statement for each line

pylie

So your perl one-liner itch hasn’t been itched enough yet? This command is for things that do not strictly fit into ‘normal’ python usage. For example:

log | pyli "'{0} {1}'.fo(s(ti.ti()), l)"

cat index.html | pyli "a.g('href') for a in BeSp(cs).f_all('a')" | pyli --text='something' "r = req.get(li); li if text in r.text else None"

Features:

  • Autocomplete
  • Look through modules for 2nd level functions to import

TODO

What’s left to do? Well, pretty much everything: it currently imports things and prints things out, and detects the use of contents/input/conts, but that’s it. If you think this would be actually useful, do send me a message, since I just ran out of motivation with which to work on this. Or better yet, contribute!

LICENSE

“THE BEER-WARE LICENSE” (Revision 42):

<thenoviceoof> wrote this file. As long as you retain this notice you can do whatever you want with this stuff. If we meet some day, and you think this stuff is worth it, you can buy me a beer in return

  • thenoviceoof

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