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best way to preserve numpy arrays on disk
I am looking for a fast way to preserve large numpy arrays. I want to save them to the disk in a binary format, then read them back into memory relatively fastly. cPickle is not fast enough, unfortunately.
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Associativity of “in” in Python?
...n is evaluated as False; ([] in 'a') is never actually evaluated, so no error is raised.
Here are the statement definitions:
In [121]: def func():
.....: return 1 in [] in 'a'
.....:
In [122]: dis.dis(func)
2 0 LOAD_CONST 1 (1)
3 BUILD_LIST ...
Is there a CSS selector for text nodes?
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Text nodes cannot have margins or any other style applied to them, so anything you need style applied to must be in an element. If you want some of the text inside of your element to be styled differently, wrap it in a span or div, for example.
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How to extract the year from a Python datetime object?
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It's in fact almost the same in Python.. :-)
import datetime
year = datetime.date.today().year
Of course, date doesn't have a time associated, so if you care about that too, you can do the same with a complete datetime object:
import datetime
year = datetime.datetime.to...
Where to install Android SDK on Mac OS X?
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Now the android-sdk has migrated from homebrew/core to homebrew/cask.
brew tap homebrew/cask
and install android-sdk using
brew cask install android-sdk
You will have to add the ANDROID_HOME to profile (.zshrc or .bashrc)
export ANDROID_HOME=/usr/local/share/android...
What's the difference between globals(), locals(), and vars()?
... either a dictionary of the current namespace (if called with no argument) or the dictionary of the argument.
locals and vars could use some more explanation. If locals() is called inside a function, it updates a dict with the values of the current local variable namespace (plus any closure varia...
How do I know if a generator is empty from the start?
Is there a simple way of testing if the generator has no items, like peek , hasNext , isEmpty , something along those lines?
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How to check if a string contains an element from a list in Python
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Use a generator together with any, which short-circuits on the first True:
if any(ext in url_string for ext in extensionsToCheck):
print(url_string)
EDIT: I see this answer has been accepted by OP. Though my solution may be "good e...
How do you tell a specific Delayed::Job to run in console?
For some reason, Delayed::Job's has decided to queue up but not excecute anything even though I've restarted it several times, even kill -9'd it and restarted it. It won't run any jobs.
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Stylecop vs FXcop
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Stylecop is a style analysis tool that works at the source code level. It exists primarily to provide a single common style that managed projects can use to remain consistent within the larger world of managed software. It makes decisions regarding style primaril...