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What is the difference between a 'closure' and a 'lambda'?
...ten as binding a lambda to a variable internally. In other languages, like Python, there are some (rather needless) distinctions between them, but they behave the same way otherwise.
A closure is any function which closes over the environment in which it was defined. This means that it can access v...
Profiling Django
..., and if my profiling middleware notices that a flag has been set, it uses Python's hotshot module like this:
def process_view(self, request, view_func, view_args, view_kwargs):
# setup things here, along with: settings.DEBUG=True
# to get a SQL dump in connection.queries
profiler...
Is Fortran easier to optimize than C for heavy calculations?
...e-functions-in-cc and open-std.org/jtc1/sc22/wg21/docs/papers/2015/p0078r0.pdf as well.
– Jeff
Dec 23 '16 at 0:51
1
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Using global variables between files?
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See Python's document on sharing global variables across modules:
The canonical way to share information across modules within a single program is to create a special module (often called config or cfg).
config.py:
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How do you normalize a file path in Bash?
...
A portable and reliable solution is to use python, which is preinstalled pretty much everywhere (including Darwin). You have two options:
abspath returns an absolute path but does not resolve symlinks:
python -c "import os,sys; print(os.path.abspath(sys.argv[1]))" ...
Titlecasing a string with exceptions
Is there a standard way in Python to titlecase a string (i.e. words start with uppercase characters, all remaining cased characters have lowercase) but leaving articles like and , in , and of lowercased?
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Why can't decimal numbers be represented exactly in binary?
...part of the sequence. The article: http://www.cs.toronto.edu/~hehner/ratno.pdf and the Wikipedia entry: http://en.wikipedia.org/wiki/Quote_notation.
There's nothing that says we can't add a symbol to our representation system, so we can represent decimal rationals exactly using binary quote notatio...
How can you get the SSH return code using Paramiko?
...%s" % chan.recv_exit_status()
client.close()
Example of its execution:
$ python sshtest.py
Password:
Command to run: true
running 'true'
exit status: 0
Command to run: false
running 'false'
exit status: 1
Command to run:
$
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pycharm convert tabs to spaces automatically
I am using pycharm IDE for python development it works perfectly fine for django code so suspected that converting tabs to spaces is default behaviour, however in python IDE is giving errors everywhere because it can't convert tabs to spaces automatically is there a way to achieve this.
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Should import statements always be at the top of a module?
... longer. Actually, I think this cost is only paid for once. I've read that Python caches an imported module so that there is only minimal cost for importing it again.
– moltenform
Sep 25 '08 at 1:45
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