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How to pick just one item from a generator?
...funct()
Everytime you would like an item, use
next(g)
(or g.next() in Python 2.5 or below).
If the generator exits, it will raise StopIteration. You can either catch this exception if necessary, or use the default argument to next():
next(g, default_value)
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Matplotlib: “Unknown projection '3d'” error
...current version of matplotlib.
Which version are you using? (Try running: python -c 'import matplotlib; print matplotlib."__version__")
I'm guessing you're running version 0.99, in which case you'll need to either use a slightly different syntax or update to a more recent version of matplotlib.
I...
How do I send a POST request as a JSON?
...uld need to add a header, and also serialize the data for your request...
Python 2.x
import json
import urllib2
data = {
'ids': [12, 3, 4, 5, 6]
}
req = urllib2.Request('http://example.com/api/posts/create')
req.add_header('Content-Type', 'application/json')
response = urllib2.urlopen(r...
Android Camera : data intent returns null
...w project, I just had to change three files for my purpose:
activity_main.xml :
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools...
Removing transforms in SVG files
...remove transforms in Inkscape
Open svg file in Inkscape
Go to Edit -> XML Editor
Find "transform" attributes in layers and delete them
How to move all objects altogether without creating another transform attributes
Go to Edit -> Select All in All Layers
Go to Object -> Transform
In...
pythonic way to do something N times without an index variable?
Every day I love python more and more.
8 Answers
8
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How do I create a dictionary with keys from a list and values defaulting to (say) zero? [duplicate]
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dict((el,0) for el in a) will work well.
Python 2.7 and above also support dict comprehensions. That syntax is {el:0 for el in a}.
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Python Script execute commands in Terminal
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Thanks for that answer mate. Will be using python for my first application on Ubuntu desktop, this will really help me.
– LinuxBill
Jan 16 '13 at 10:55
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Convert absolute path into relative path given a current directory using Bash
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$ python -c "import os.path; print os.path.relpath('/foo/bar', '/foo/baz/foo')"
gives:
../../bar
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Does Python have a string 'contains' substring method?
I'm looking for a string.contains or string.indexof method in Python.
10 Answers
1...