Unnest (explode) a Pandas Series
I have:
python
How to check type of files without extensions?
File tests each argument in an attempt to classify it. There are three
sets of tests, performed in this order: filesystem tests, magic number
tests, and language tests. The first test that succeeds causes the
file type to be printed.
Circular list iterator in Python
I need to iterate over a circular list, possibly many times, each time starting with the last visited item.
What does the caret (^) operator do?
I ran across the caret operator in python today and trying it out, I got the following output:
How to execute a file within the Python interpreter?
I’m trying to execute a file with Python commands from within the interpreter.
Check if a number is a perfect square
How could I check if a number is a perfect square?
What does preceding a string literal with “r” mean?
When an 'r' or 'R' prefix is present,
a character following a backslash is
included in the string without change,
and all backslashes are left in the
string. For example, the string
literal r"n" consists of two
characters: a backslash and a
lowercase 'n'. String quotes can be
escaped with a backslash, but the
backslash remains in the string; for
example, r""" is a valid string
literal consisting of two characters:
a backslash and a double quote; r""
is not a valid string literal (even a
raw string cannot end in an odd number
of backslashes). Specifically, a raw
string cannot end in a single
backslash (since the backslash would
escape the following quote character).
Note also that a single backslash
followed by a newline is interpreted
as those two characters as part of the
string, not as a line continuation.
Why isn’t PyCharm’s autocomplete working for libraries I install?
PyCharm’s autocomplete isn’t working for installed libraries. I have the following code:
Selecting a row of pandas series/dataframe by integer index
I am curious as to why df[2] is not supported, while df.ix[2] and df[2:3] both work.