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git: difference between “branchname” and “refs/heads/branchname”
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answered Oct 6 '09 at 15:58
CascabelCascabel
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What are the Ruby File.open modes and options?
...one wondered).
– yoppuyoppu
Sep 16 '15 at 13:14
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Get most recent file in a directory on Linux
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15
A minor issue: This version pipes all the output of ls to tail, then prints only the LAST line. IMHO it is better to sort in ascending orde...
Java Map equivalent in C#
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edited Oct 15 '14 at 13:26
Community♦
111 silver badge
answered Mar 26 '09 at 23:33
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How to convert SQL Query result to PANDAS Data Structure?
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Edit: Mar. 2015
As noted below, pandas now uses SQLAlchemy to both read from (read_sql) and insert into (to_sql) a database. The following should work
import pandas as pd
df = pd.read_sql(sql, cnxn)
Previous answer:
Via mikebmassey f...
Set a persistent environment variable from cmd.exe
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edited Dec 12 '15 at 6:43
eel ghEEz
93299 silver badges2323 bronze badges
answered May 5 '11 ...
Permission denied (publickey) when SSH Access to Amazon EC2 instance [closed]
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edited May 27 '15 at 6:30
answered Aug 31 '13 at 21:11
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Mock vs MagicMock
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edited Sep 17 '15 at 23:14
NYT got Trump's taxes LOL
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answered Apr 11 '14 at 12:42
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What is the difference between NaN and None?
...s are not supported i.e. they may sometimes give surprising results):
In [15]: s_bad.sum()
Out[15]: 1
In [16]: s_good.sum()
Out[16]: 1.0
To answer the second question:
You should be using pd.isnull and pd.notnull to test for missing data (NaN).
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String literals and escape characters in postgresql
...\copy' meta-command.
– Stew
Dec 31 '15 at 17:09
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