pythonwpy 0.3.19

python -c, with tab completion and shorthan

Installation
------------

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sudo pip install pythonpy
# restart your shell for tab completion to take effect

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py 'expression' ≅ python -c 'print(expression)'
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Float Arithmetic
~~~~~~~~~~~~~~~~

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$ py '3 * 1.5'
4.5

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Access imports directly
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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$ py 'math.exp(1)'
2.71828182846

$ py 'random.random()'
0.103173957713

$ py 'datetime.datetime.now?'
Help on built-in function now:

now(...)
[tz] -> new datetime with tz's local day and time.


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Lists are printed row by row
~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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$ py 'range(3)'
0
1
2

$ py '[range(3)]'
[0, 1, 2]

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py -x 'foo(x)' will apply foo to each line of input
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Multiply each line of input by 7.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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$ py 'range(3)' | py -x 'int(x)*7'
0
7
14

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Append ".txt" to each line of input
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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$ py 'range(3)' | py -x 'x + ".txt"'
0.txt
1.txt
2.txt

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Append ".txt" to every file in the directory
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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$ ls | py -x '"mv `%s` `%s.txt`" % (x,x)' | sh
# sharp quotes are swapped out for single quotes
# single quotes handle spaces in filenames

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Get only even numbers
~~~~~~~~~~~~~~~~~~~~~

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$ py 'range(8)' | py -x 'x if int(x)%2 == 0 else None'
0
2
4
6

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py -fx 'predicate(x)' filters rows satisfying a condition
---------------------------------------------------------

Get only odd numbers
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$ py 'range(8)' | py -fx 'int(x)%2 == 1'
1
3
5
7

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Get words starting with "and"
~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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$ cat /usr/share/dict/words | py -fx 're.match(r"and", x)' | head -5
and
andante
andante's
andantes
andiron

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Get verbs starting with ba
~~~~~~~~~~~~~~~~~~~~~~~~~~

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$ cat /usr/share/dict/words | py -fx 're.match(r"ba.*ing$", x)' | head -5
baaing
babbling
babying
babysitting
backbiting

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Get long palindromes
~~~~~~~~~~~~~~~~~~~~

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$ cat /usr/share/dict/words | py -fx 'x==x[::-1] and len(x) >= 5' | head -5
civic
deified
kayak
level
ma'am

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py -l will set l = list(sys.stdin)
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Reverse the input
~~~~~~~~~~~~~~~~~

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$ py 'range(3)' | py -l 'l[::-1]'
2
1
0

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Sum the input
~~~~~~~~~~~~~

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$ py 'range(3)' | py -l 'sum(int(x) for x in l)'
3

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Count the lines of input
~~~~~~~~~~~~~~~~~~~~~~~~

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$ py 'range(17)' | py -l 'len(l)'
17

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Count words beginning with each letter
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$ cat /usr/share/dict/words | py -x 'x[0].lower()' | py -l 'collections.Counter(l).most_common(5)'
('s', 11327)
('c', 9521)
('p', 7659)
('b', 6068)
('m', 5922)

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If you haven't had enough yet, check out the `wiki <http://github.com/Russell91/pythonpy/wiki>`__
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