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How to check if a file exists in a folder?
...
You can also use the FileInfo.Exists property
– VMAtm
Sep 12 '11 at 8:46
10
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Python UTC datetime object's ISO format doesn't include Z (Zulu or Zero offset)
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Python datetime objects don't have time zone info by default, and without it, Python actually violates the ISO 8601 specification (if no time zone info is given, assumed to be local time). You can use the pytz package to get some default time zones, or directly subclass...
Exif manipulation library for python [closed]
...forge.net/
The pyexif python library and tools aims at extracting EXIF information from Jpeg and Tiff files which include it. This information is typically included in images created using digital imaging devices such as digital cameras, digital film scanners, etc.
However, it looks like pyex...
How do I read an attribute on a class at runtime?
... This extension method could be further generalized by extending MemberInfo, a base class of Type and all - or at least most - of a Type's members. Doing so would open this up to allow reading attributes from Properties, Fields, and even Events.
– M.Babcock
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How to clear gradle cache?
...THER DIGRESSIONS
see here (including edits).
================
OBSOLETE INFO:
Newest solution using gradle task
cleanBuildCache
available via android plugin for Gradle, revision 2.3.0 (February 2017)
Dependencies:
Gradle 3.3 or higher.
Build Tools 25.0.0 or higher.
more at:
https://dev...
Does “\d” in regex mean a digit?
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Info regarding .NET / C#:
Decimal digit character: \d
\d matches any decimal digit. It is equivalent to the \p{Nd} regular expression pattern, which includes the standard decimal digits 0-9 as well as the decimal digit...
What is the purpose of class methods?
...ger.DEBUG
Then, in my code, if I wanted to spit out a bunch of debugging information, I simply had to code
Logger.debug( "this is some annoying message I only want to see while debugging" )
Errors could be out put with
Logger.error( "Wow, something really awful happened." )
In the "producti...
Have nginx access_log and error_log log to STDOUT and STDERR of master process
...the logs to /dev/stdout. In nginx.conf:
daemon off;
error_log /dev/stdout info;
http {
access_log /dev/stdout;
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}
edit: May need to run ln -sf /proc/self/fd /dev/ if using running certain docker containers, then use /dev/fd/1 or /dev/fd/2
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How do you determine the size of a file in C?
...lude <sys/stat.h>
int main(int argc, char** argv)
{
struct stat info;
stat(argv[1], &info);
// 'st' is an acronym of 'stat'
printf("%s: size=%ld\n", argv[1], info.st_size);
}
#include <stdio.h>
#include <sys/stat.h>
int main(int argc, char** argv)
{
str...
Can't compare naive and aware datetime.now()
...aware, and you can compare them
Note: This would raise a ValueError if tzinfo is already set. If you are not sure about that, just use
start_time = challenge.datetime_start.replace(tzinfo=utc)
end_time = challenge.datetime_end.replace(tzinfo=utc)
BTW, you could format a UNIX timestamp in dateti...