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python pandas dataframe to dictionary
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12 Answers
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SQL SELECT WHERE field contains words
...ELECT * FROM mytable
WHERE column1 LIKE '%word1%'
OR column1 LIKE '%word2%'
OR column1 LIKE '%word3%'
If you need all words to be present, use this:
SELECT * FROM mytable
WHERE column1 LIKE '%word1%'
AND column1 LIKE '%word2%'
AND column1 LIKE '%word3%'
If you want something faster, y...
What is the default initialization of an array in Java?
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285
Everything in a Java program not explicitly set to something by the programmer, is initialized...
convert an enum to another type of enum
...om a service which has its own Gender enum ( Male =0 , Female =1, Unknown =2 )
14 Answers
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Dictionary vs Object - which is more efficient and why?
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o['i'] = i
o['l'] = []
all[i] = o
test_namedtuple.py (supported in 2.6):
import collections
Obj = collections.namedtuple('Obj', 'i l')
all = {}
for i in range(1000000):
all[i] = Obj(i, [])
Run benchmark (using CPython 2.5):
$ lshw | grep product | head -n 1
product: Intel(R) P...
How do I “undo” a --single-branch clone?
...as the "fetch" under [remote "origin"].
Note: I'm running Git version 1.8.2. The config options may have changed if you're running an older version of Git. If my commands don't work, then I'd recommend looking through .git/config to see if you can see something similar.
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How do you save/store objects in SharedPreferences on Android?
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20 Answers
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How to scroll HTML page to given anchor?
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answered Jul 2 '10 at 6:25
Dean HardingDean Harding
65.8k1010 gold badges127127 silver badges172172 bronze badges
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How to get the list of files in a directory in a shell script?
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286
for entry in "$search_dir"/*
do
echo "$entry"
done
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u'\ufeff' in Python string
... using the right codec, Python will remove it for you. Examples:
#!python2
#coding: utf8
u = u'ABC'
e8 = u.encode('utf-8') # encode without BOM
e8s = u.encode('utf-8-sig') # encode with BOM
e16 = u.encode('utf-16') # encode with BOM
e16le = u.encode('utf-16le') # encode without BOM
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