python -c, with tab completion and shorthand
Project description
Installation
------------
::
sudo pip install pythonpy
# restart your shell for tab completion to take effect
::
py 'expression' ≅ python -c 'print(expression)'
-----------------------------------------------
Float Arithmetic
~~~~~~~~~~~~~~~~
::
$ py '3 * 1.5'
4.5
::
Access imports directly
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
::
$ 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.
::
Lists are printed row by row
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
::
$ py 'range(3)'
0
1
2
$ py '[range(3)]'
[0, 1, 2]
::
py -x 'foo(x)' will apply foo to each line of input
---------------------------------------------------
Multiply each line of input by 7.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
::
$ py 'range(3)' | py -x 'int(x)*7'
0
7
14
::
Append ".txt" to each line of input
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
::
$ py 'range(3)' | py -x 'x + ".txt"'
0.txt
1.txt
2.txt
::
Append ".txt" to every file in the directory
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
::
$ ls | py -x '"mv `%s` `%s.txt`" % (x,x)' | sh
# sharp quotes are swapped out for single quotes
# single quotes handle spaces in filenames
::
Get only even numbers
~~~~~~~~~~~~~~~~~~~~~
::
$ py 'range(8)' | py -x 'x if int(x)%2 == 0 else None'
0
2
4
6
::
py -fx 'predicate(x)' filters rows satisfying a condition
---------------------------------------------------------
Get only odd numbers
~~~~~~~~~~~~~~~~~~~~
::
$ py 'range(8)' | py -fx 'int(x)%2 == 1'
1
3
5
7
::
Get words starting with "and"
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
::
$ cat /usr/share/dict/words | py -fx 're.match(r"and", x)' | head -5
and
andante
andante's
andantes
andiron
::
Get verbs starting with ba
~~~~~~~~~~~~~~~~~~~~~~~~~~
::
$ cat /usr/share/dict/words | py -fx 're.match(r"ba.*ing$", x)' | head -5
baaing
babbling
babying
babysitting
backbiting
::
Get long palindromes
~~~~~~~~~~~~~~~~~~~~
::
$ cat /usr/share/dict/words | py -fx 'x==x[::-1] and len(x) >= 5' | head -5
civic
deified
kayak
level
ma'am
::
py -l will set l = list(sys.stdin)
-------------------------------------------
Reverse the input
~~~~~~~~~~~~~~~~~
::
$ py 'range(3)' | py -l 'l[::-1]'
2
1
0
::
Sum the input
~~~~~~~~~~~~~
::
$ py 'range(3)' | py -l 'sum(int(x) for x in l)'
3
::
Count the lines of input
~~~~~~~~~~~~~~~~~~~~~~~~
::
$ py 'range(17)' | py -l 'len(l)'
17
::
Count words beginning with each letter
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
::
$ 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)
::
If you haven't had enough yet, check out the `wiki <http://github.com/Russell91/pythonpy/wiki>`__
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
------------
::
sudo pip install pythonpy
# restart your shell for tab completion to take effect
::
py 'expression' ≅ python -c 'print(expression)'
-----------------------------------------------
Float Arithmetic
~~~~~~~~~~~~~~~~
::
$ py '3 * 1.5'
4.5
::
Access imports directly
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
::
$ 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.
::
Lists are printed row by row
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
::
$ py 'range(3)'
0
1
2
$ py '[range(3)]'
[0, 1, 2]
::
py -x 'foo(x)' will apply foo to each line of input
---------------------------------------------------
Multiply each line of input by 7.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
::
$ py 'range(3)' | py -x 'int(x)*7'
0
7
14
::
Append ".txt" to each line of input
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
::
$ py 'range(3)' | py -x 'x + ".txt"'
0.txt
1.txt
2.txt
::
Append ".txt" to every file in the directory
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
::
$ ls | py -x '"mv `%s` `%s.txt`" % (x,x)' | sh
# sharp quotes are swapped out for single quotes
# single quotes handle spaces in filenames
::
Get only even numbers
~~~~~~~~~~~~~~~~~~~~~
::
$ py 'range(8)' | py -x 'x if int(x)%2 == 0 else None'
0
2
4
6
::
py -fx 'predicate(x)' filters rows satisfying a condition
---------------------------------------------------------
Get only odd numbers
~~~~~~~~~~~~~~~~~~~~
::
$ py 'range(8)' | py -fx 'int(x)%2 == 1'
1
3
5
7
::
Get words starting with "and"
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
::
$ cat /usr/share/dict/words | py -fx 're.match(r"and", x)' | head -5
and
andante
andante's
andantes
andiron
::
Get verbs starting with ba
~~~~~~~~~~~~~~~~~~~~~~~~~~
::
$ cat /usr/share/dict/words | py -fx 're.match(r"ba.*ing$", x)' | head -5
baaing
babbling
babying
babysitting
backbiting
::
Get long palindromes
~~~~~~~~~~~~~~~~~~~~
::
$ cat /usr/share/dict/words | py -fx 'x==x[::-1] and len(x) >= 5' | head -5
civic
deified
kayak
level
ma'am
::
py -l will set l = list(sys.stdin)
-------------------------------------------
Reverse the input
~~~~~~~~~~~~~~~~~
::
$ py 'range(3)' | py -l 'l[::-1]'
2
1
0
::
Sum the input
~~~~~~~~~~~~~
::
$ py 'range(3)' | py -l 'sum(int(x) for x in l)'
3
::
Count the lines of input
~~~~~~~~~~~~~~~~~~~~~~~~
::
$ py 'range(17)' | py -l 'len(l)'
17
::
Count words beginning with each letter
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
::
$ 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)
::
If you haven't had enough yet, check out the `wiki <http://github.com/Russell91/pythonpy/wiki>`__
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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