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Local (?) variable referenced before assignment [duplicate]
... global test1
test1 += 1
testFunc()
However, if you only need to read the global variable you can print it without using the keyword global, like so:
test1 = 0
def testFunc():
print test1
testFunc()
But whenever you need to modify a global variable you must use the keyword global....
numpy matrix vector multiplication [duplicate]
... how it works, but honestly, I didn't fully understand how to use it until reading this answer and just playing around with it on my own.
>>> np.einsum('ji,i->j', a, b)
array([16, 6, 8])
As of mid 2016 (numpy 1.10.1), you can try the experimental numpy.matmul, which works like numpy.do...
Are there good reasons not to use an ORM? [closed]
...ORM is that the security model is a little less flexible.
EDIT: I just re-read your question and it looks they are copy and pasting the queries into inline sql. This makes the security model the same as an ORM, so there would be absolutely no advantage over this approach over an ORM. If they are ...
How to unit test a Node.js module that requires other modules and how to mock the global require fun
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I suggest you read up on sinon.js. If you're using sinon (as in the example above) you would either innerLib.toCrazyCrap.restore() and restub, or call sinon via sinon.stub(innerLib, 'toCrazyCrap') which allows you to change how the stub b...
How does #include work in C++? [duplicate]
I have read from a codeforces blog that if we add #include <bits/stdc++.h> in a C++ program then there is no need to include any other header files. How does #include <bits/stdc++.h> work and is it ok to use it instead of including individual header files?
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Is there a command to list all Unix group names? [closed]
...etent group
The reason is that on networked systems, groups may not only read from /etc/group file, but also obtained through LDAP or Yellow Pages (the list of known groups comes from the local group file plus groups received via LDAP or YP in these cases).
If you want just the group names you ca...
Principles for Modeling CouchDB Documents
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There have been some great answers to this already, but I wanted to add some more recent CouchDB features to the mix of options for working with the original situation described by viatropos.
The key point at which to split up documents is where there might be conflict...
.NET: Which Exception to Throw When a Required Configuration Setting is Missing?
...orsException - despite the misleading MSDN docs) are for errors in saving, reading, etc. of Configuration.
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What is syntax for selector in CSS for next element?
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@BoltClock Yes you are correct, I mis-read the spec and deleted that comment because it was wrong. This selector will only match the p that is immediately preceded by h1.hc-reform (with the same parent element, of course).
– Josh Stodola
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How to find time complexity of an algorithm
... Giving an in-answer example would have helped a lot, for future readers. Just handing over a link for which I have to signup, really doesn't help me when I just want to go through some nicely explained text.
– bad_keypoints
Jan 2 '16 at 4:48
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