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Getting Python error “from: can't read /var/mail/Bio”
...xecute it as python script.py, otherwise the default shell will execute it and it will bail out at the from keyword. (Incidentally, from is the name of a command line utility which prints names of those who have sent mail to the given username, so that's why it tries to access the mailboxes).
Anoth...
How to print a date in a regular format?
...r() function. It is most of the time the most common human readable format and is used to ease display. So str(datetime.datetime(2008, 11, 22, 19, 53, 42)) gives you '2008-11-22 19:53:42'.
The alternative representation that is used to represent the object nature (as a data). It can be get using th...
Sibling package imports
I've tried reading through questions about sibling imports and even the
package documentation , but I've yet to find an answer.
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How can I redirect HTTP requests made from an iPad?
... the edits take effect. On Ubuntu that's sudo service squid3 reload. Also--and maybe this is a config problem specific to my dev server--on my iPad I have to manually enter the http:// for address resolution to work correctly.
– Andy Giesler
Jun 4 '14 at 15:39
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Hidden Features of MySQL
...t have only just recently started to use MySQL with my web applications, and I'm hungry for knowledge.
20 Answers
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SQL Server dynamic PIVOT query?
... So \@cols must be string-concatenated, right? We can't use sp_executesql and parameter-binding to interpolate \@cols in there? Even though we construct \@cols ourself, what if somehow it contained malicious SQL. Any additional mitigating steps I could take before concatenating it and executing it?...
Convert Unix timestamp to a date string
...ick, one-liner way to convert a Unix timestamp to a date from the Unix command line?
11 Answers
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How to detect when an Android app goes to the background and come back to the foreground
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The onPause() and onResume() methods are called when the application is brought to the background and into the foreground again. However, they are also called when the application is started for the first time and before it is killed. You ...
Difference between static memory allocation and dynamic memory allocation
...would like to know what is the difference between static memory allocation and dynamic memory allocation?
7 Answers
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Constantly print Subprocess output while process is running
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You can use iter to process lines as soon as the command outputs them: lines = iter(fd.readline, ""). Here's a full example showing a typical use case (thanks to @jfs for helping out):
from __future__ import print_function # Only Python 2.x
import subprocess
def execute(cmd):...