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not None test in Python [duplicate]
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1033
if val is not None:
# ...
is the Pythonic idiom for testing that a variable is not set t...
How to add an email attachment from a byte array?
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edited Apr 6 '10 at 10:09
answered Apr 6 '10 at 10:06
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Multiple file extensions in OpenFileDialog
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user541686user541686
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Objective-C class -> string like: [NSArray className] -> @“NSArray”
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306
NSString *name = NSStringFromClass ([NSArray class]);
You can even go back the other way:
Cl...
How do I comment on the Windows command line?
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answered Jun 8 '10 at 13:20
paxdiablopaxdiablo
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Plotting a list of (x, y) coordinates in python matplotlib
...er this example:
import numpy as np
import matplotlib.pyplot as plt
N = 50
x = np.random.rand(N)
y = np.random.rand(N)
plt.scatter(x, y)
plt.show()
will produce:
To unpack your data from pairs into lists use zip:
x, y = zip(*li)
So, the one-liner:
plt.scatter(*zip(*li))
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Why does find -exec mv {} ./target/ + not work?
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From the manual page:
-exec command ;
Execute command; true if 0 status is returned. All following arguments to find are taken to be arguments to the command until an argument consisting of `;' is encountered. The string `{}' is replaced by the current file name being processed ever...
Merge two branch revisions using Subversion
I'd like to merge all the changes that took place between rev 10 & the HEAD rev on http://url-of-branch-a and apply them to http://url-of-branch-b .
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Declaring a default constraint when creating a table
I am creating a new table in Microsoft SQL server 2000 by writing the code instead of using the GUI, I am trying to learn how to do it "the manual way".
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Why is System.Web.Mvc not listed in Add References?
Using C#, Visual Studio 2010.
14 Answers
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