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gdb fails with “Unable to find Mach task port for process-id” error
My app runs fine but gdb fails to debug it with the following error
12 Answers
12
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How to check for null in Twig?
...se (such as zero, empty string and empty array). Besides, it will cause an error if var is not defined. A safer way would be:
{% if var is not defined or var is null %}
which can be shortened to:
{% if var|default is null %}
If you don't provide an argument to the default filter, it assumes NU...
What are some (concrete) use-cases for metaclasses?
...Field attributes, they are injected with their names (for more informative error messages, for example), and grouped into a _fields dictionary (for easy iteration, without having to look through all the class attributes and all its base classes' attributes every time):
>>> class A(Model):
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Where and how is the _ViewStart.cshtml layout file linked?
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edited Jul 21 '17 at 9:05
Sнаđошƒаӽ
11.6k1111 gold badges6060 silver badges8383 bronze badges
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enum - getting value of enum on string conversion
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– Martijn Pieters♦
Apr 26 at 12:05
I have added def __eq__(self, other): return int(self.value) == other ...
How to change the name of a Django app?
...er, imports and all its references (templates/indexes). But now I get this error when I try to run python manage.py runserver
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Locking a file in Python
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edited Mar 15 '13 at 16:05
Janus Troelsen
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presentViewController:animated:YES view will not appear until user taps again
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answered Feb 19 '15 at 17:05
JaganYJaganY
5333 bronze badges
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How to print a percentage value in python?
... 0.0 not ok
– mpgn
Feb 13 '15 at 23:05
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SQL Add foreign key to existing column
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Error indicates that there is no UserID column in your Employees table. Try adding the column first and then re-run the statement.
ALTER TABLE Employees
ADD CONSTRAINT FK_ActiveDirectories_UserID FOREIGN KEY (UserID)
REF...