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round() for float in C++
....49999999999999994, (see it live).
Another common implementation involves casting a floating point type to an integral type, which can invoke undefined behavior in the case where the integral part can not be represented in the destination type. We can see this from the draft C++ standard section 4....
How do I add tab completion to the Python shell?
... readline not available.")
else:
import rlcompleter
readline.parse_and_bind("tab: complete")
then in your .bashrc file, add
export PYTHONSTARTUP=~/.pythonrc
That seems to work.
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How to use glob() to find files recursively?
...lob('**/*.c'), but don't forget to pass in the recursive keyword parameter and it will use inordinate amount of time on large directories.
For cases where matching files beginning with a dot (.); like files in the current directory or hidden files on Unix based system, use the os.walk solution below...
How can I find script's directory with Python? [duplicate]
... print os.path.dirname(os.path.realpath(__file__))', which is a set of commands run by a python interpreter.
– Ehtesh Choudhury
Jan 5 '15 at 19:50
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How to set ViewBag properties for all Views without using a base class for Controllers?
... common objects as properties of the base WebViewPage so you don't have to cast items from the ViewBag in every single View. I do my CurrentUser setup this way.
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How to detect the OS from a Bash script?
I would like to keep my .bashrc and .bash_login files in version control so that I can use them between all the computers I use. The problem is I have some OS specific aliases so I was looking for a way to determine if the script is running on Mac OS X, Linux or Cygwin .
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MySQL SELECT WHERE datetime matches day (and not necessarily time)
...anual: "For best results when using BETWEEN with date or time values, use CAST() to explicitly convert the values to the desired data type. Examples: If you compare a DATETIME to two DATE values, convert the DATE values to DATETIME values. If you use a string constant such as '2001-1-1' in a compar...
Using Python's os.path, how do I go up one directory?
...he templates folder should go, I don't know since Django 1.4 just came out and I haven't looked at it yet. You should probably ask another question on SE to solve that issue.
You can also use normpath to clean up the path, rather than abspath. However, in this situation, Django expects an absolute ...
How can I create directories recursively? [duplicate]
...s.makedirs is what you need. For chmod or chown you'll have to use os.walk and use it on every file/dir yourself.
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What to do on TransactionTooLargeException
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I encountered this issue, and I found that when there huge amount of data getting exchanged between a service and an application,(This involves transferring lots of thumbnails). Actually data size was around 500kb, and the IPC transaction buffer size...