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Check if value already exists within list of dictionaries?
... above code can give you a KeyError. You can fix this by using get and providing a default value. If you don't provide a default value, None is returned.
if not any(d.get('main_color', default_value) == 'red' for d in a):
# does not exist
...
Xcode 4 - “Archive” is greyed out?
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Apple's developer software is ridiculously non-user-friendly. I've spent so long trying to get the stupid provisioning profiles and push certificates to work and trying to export my app, barely making it by Googling everything. About as much time as I've s...
How to include file in a bash shell script
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Simply put inside your script :
source FILE
Or
. FILE # POSIX compliant
$ LANG=C help source
source: source filename [arguments]
Execute commands from a file in the current shell.
Read and execute commands from FILENAME in the current ...
How to connect an existing SQL Server login to an existing SQL Server database user of same name
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@liam did you really just down vote this answer that is 8 years old and reference the accepted answer that is also 8 years old which already contains the information that its deprecated?
– Gratzy
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In Jinja2, how do you test if a variable is undefined?
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Consider using default filter if it is what you need. For example:
{% set host = jabber.host | default(default.host) -%}
or use more fallback values with "hardcoded" one at the end like:
{% set connectTimeout = config.stackow...
unable to locate nuget.exe when building webservice on appharbor
...yone who can't find it, the nuget.targets file is in the .nuget/ (usually hidden) subfolder of the project folder.
– Jeff Hay
May 17 '17 at 18:23
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Suppress/ print without b' prefix for bytes in Python 3
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Side note: I don't think any of the other answers truly answer the question.
– Mateen Ulhaq
Jul 29 '19 at 6:42
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Android adding simple animations while setvisibility(view.Gone)
... add animations when textview click event and I don't know how to use it.
Did my xml design looks good or not?
Any suggestions would be appreciated.
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Overloaded method selection based on the parameter's real type
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I expect the method selection to take
in consideration the real (not the
declared) parameter type. Am I missing
something?
Yes. Your expectation is wrong. In Java, dynamic method dispatch happens only for the object the method is called on, not for the parameter t...
What's the difference between the build and create methods in FactoryGirl?
...es not persist to the db and does not call save!, so your Active Record validations will not run. This is much faster, but validations might be important.
Using FactoryGirl.create(:factory_name) will persist to the db and will call Active Record validations. This is obviously slower but can catch v...