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How do I validate a date string format in python?
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233
>>> import datetime
>>> def validate(date_text):
try:
datetime.d...
Is it possible to change only the alpha of a rgba background colour on hover?
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52
This is now possible with custom properties:
.brown { --rgb: 118, 76, 41; }
.green { --rgb: 51,...
Get source JARs from Maven repository
...dependency:sources -DincludeArtifactIds=guava
Source: http://tedwise.com/2010/01/27/maven-micro-tip-get-sources-and-javadocs/
Documentation: https://maven.apache.org/plugins/maven-dependency-plugin/sources-mojo.html
share...
json_encode sparse PHP array as JSON array, not JSON object
...ng this behaviour because your array is not sequential - it has keys 0 and 2, but doesn't have 1 as a key.
Just having numeric indexes isn't enough. json_encode will only encode your PHP array as a JSON array if your PHP array is sequential - that is, if its keys are 0, 1, 2, 3, ...
You can reinde...
How can mixed data types (int, float, char, etc) be stored in an array?
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244
You can make the array elements a discriminated union, aka tagged union.
struct {
enum { ...
T-SQL split string
I have a SQL Server 2008 R2 column containing a string which I need to split by a comma. I have seen many answers on StackOverflow but none of them works in R2. I have made sure I have select permissions on any split function examples. Any help greatly appreciated.
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How to install packages offline?
...$ mkdir /pypi && cd /pypi
$ ls -la
-rw-r--r-- 1 pavel staff 237954 Apr 19 11:31 Flask-WTF-0.6.tar.gz
-rw-r--r-- 1 pavel staff 389741 Feb 22 17:10 Jinja2-2.6.tar.gz
-rw-r--r-- 1 pavel staff 70305 Apr 11 00:28 MySQL-python-1.2.3.tar.gz
-rw-r--r-- 1 pavel staff 25972...
How to filter SQL results in a has-many-through relation
...greSQL 9.0 on Debian Squeeze with decent RAM and settings.
6.000 students, 24.000 club memberships (data copied from a similar database with real life data.)
Slight diversion from the naming schema in the question: student.id is student.stud_id and club.id is club.club_id here.
I named the queries a...
Xcode: issue “file xxx.png is missing from working copy” at project building
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24 Answers
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How can I map True/False to 1/0 in a Pandas DataFrame?
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284
A succinct way to convert a single column of boolean values to a column of integers 1 or 0:
d...