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Read first N lines of a file in python
...s myfile:
head = [next(myfile) for x in xrange(N)]
print head
Python 3
with open("datafile") as myfile:
head = [next(myfile) for x in range(N)]
print(head)
Here's another way (both Python 2 & 3)
from itertools import islice
with open("datafile") as myfile:
head = list(islice(my...
How exactly do Django content types work?
...
315
So you want to use the Content Types framework on your work?
Start by asking yourself this qu...
How to assign a Git SHA1's to a file without Git?
...or example, the hash of an empty file:
sha1("blob 0\0") = "e69de29bb2d1d6434b8b29ae775ad8c2e48c5391"
$ touch empty
$ git hash-object empty
e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
Another example:
sha1("blob 7\0foobar\n") = "323fae03f4606ea9991df8befbb2fca795e648fa"
$ echo "foobar" > foo.tx...
Using mixins vs components for code reuse in Facebook React
...
Dan AbramovDan Abramov
228k7272 gold badges376376 silver badges480480 bronze badges
2
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using gitignore to ignore (but not delete) files
...
183
Instead of .gitignore, you can update local git repository by running following command:
git up...
Where's the difference between setObject:forKey: and setValue:forKey: in NSMutableDictionary?
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163
setValue:forKey: is part of the NSKeyValueCoding protocol, which among other things, lets you ac...
difference and when to use getApplication(), getApplicationContext(), getBaseContext() and someClass
...
answered Apr 27 '12 at 8:30
waqaslamwaqaslam
63.5k1414 gold badges153153 silver badges169169 bronze badges
...
How can the Euclidean distance be calculated with NumPy?
I have two points in 3D:
22 Answers
22
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Is the VC++ code DOM accessible from VS addons?
...
answered Apr 24 '14 at 15:39
TheFlashTheFlash
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...
What's Pros and Cons: putting javascript in head and putting just before the body close
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63
From Yahoo's Best Practices for Speeding Up Your Web Site:
The problem caused by scripts is ...