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How often does python flush to a file?
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For file operations, Python uses the operating system's default buffering unless you configure it do otherwise. You can specify a buffer size, unbuffered, or line buffered.
For example, the open function takes a buffer size argument.
http://do...
UnicodeEncodeError: 'ascii' codec can't encode character u'\xa0' in position 20: ordinal not in rang
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You need to read the Python Unicode HOWTO. This error is the very first example.
Basically, stop using str to convert from unicode to encoded text / bytes.
Instead, properly use .encode() to encode the string:
p.agent_info = u' '.join((agent_c...
Return first N key:value pairs from dict
...urn list(islice(iterable, n))
See it working online: ideone
Update for Python 3.6
n_items = take(n, d.items())
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How do I save and restore multiple variables in python?
...created here...
# Saving the objects:
with open('objs.pkl', 'w') as f: # Python 3: open(..., 'wb')
pickle.dump([obj0, obj1, obj2], f)
# Getting back the objects:
with open('objs.pkl') as f: # Python 3: open(..., 'rb')
obj0, obj1, obj2 = pickle.load(f)
If you have a lot of data, you can...
Admob Error in Eclipse for android:configChanges
...giving me an error on the android:configChanges line in my AndroidManifest.xml:
7 Answers
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python: how to send mail with TO, CC and BCC?
... smtplib.SMTP does not send lists as to addresses. At least not on python 2.7.2
– LostMohican
Apr 5 '12 at 8:06
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Connecting to remote URL which requires authentication using Java
...sult, or call a method variant that does not produce chunked output. javax.xml.bind.DatatypeConverter seems safer.
– Jesse Glick
May 9 '13 at 15:00
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Check whether a path is valid in Python without creating a file at the path's target
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Call the is_path_exists_or_creatable() function defined below.
Strictly Python 3. That's just how we roll.
A Tale of Two Questions
The question of "How do I test pathname validity and, for valid pathnames, the existence or writability of those paths?" is clearly two separate questions. Both are...
Convert string in base64 to image and save on filesystem in Python
...e data using the base64 codec, and then write it to the filesystem.
# In Python 2.7
fh = open("imageToSave.png", "wb")
fh.write(img_data.decode('base64'))
fh.close()
# or, more concisely using with statement
with open("imageToSave.png", "wb") as fh:
fh.write(img_data.decode('base64'))
Moder...
What is :: (double colon) in Python when subscripting sequences?
I know that I can use something like string[3:4] to get a substring in Python, but what does the 3 mean in somesequence[::3] ?
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