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Check to see if python script is running
...bind('\0' + process_name)
print 'I got the lock'
except socket.error:
print 'lock exists'
sys.exit()
get_lock('running_test')
while True:
time.sleep(3)
It is atomic and avoids the problem of having lock files lying around if your process gets sent a SIGKILL
You can...
self referential struct definition?
...ive things... I would like each cell to contain another cell, but I get an error along the lines of "field 'child' has incomplete type". What's up?
...
Why is “import *” bad?
...ity).
Because you can't use cool tools like pyflakes to statically detect errors in your code.
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What does 'synchronized' mean?
...e
strategy for preventing thread
interference and memory consistency
errors: if an object is visible to
more than one thread, all reads or
writes to that object's variables are
done through synchronized methods.
In a very, very small nutshell: When you have two threads that are reading...
How do you specify that a class property is an integer?
... = guard((a, b) => a + b as integer, myCoolInteger, 10)
you'll get an error like below
Argument of type '10' is not assignable to parameter of type 'integer'.
Type '10' is not assignable to type '{ readonly [TAG]: unique symbol; }'.(2345)
Note that you aren't enforcing the return type here...
Google Maps Android API v2 Authorization failure
... (?) was updated while I was reading Stackoverflow with the authentication error message on log. The app was running with while screen, after a few minutes the map was loaded and no more auth errors. I guess a reinstall would also have done it.
– John
Nov 25 '1...
How to spread django unit tests over multiple files?
...
This is great but I ran into an error where, when running an app level test (python manage.py test appName) the second bit of code would throw an error stating that __path__ was not available. I avoided it by wrapping the second snippet in a if '__path__'...
How to check if a string is a valid date
...
require 'date'
begin
Date.parse("31-02-2010")
rescue ArgumentError
# handle invalid date
end
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Command prompt won't change directory to another drive
...ttempt to change to a directory on a different drive, it would give you an error message saying "ERROR - the file you're trying to access resides on another driver. Specify -d..."
– committedandroider
Oct 22 '19 at 22:21
...
Relative imports in Python 3
...)[0] returns empty string. This is why there's empty string literal in the error description:
SystemError: Parent module '' not loaded, cannot perform relative import
The relevant part of the CPython's PyImport_ImportModuleLevelObject function:
if (PyDict_GetItem(interp->modules, package) == ...