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How to avoid annoying error “declared and not used”
... golint etc, and removes and adds import entries. So at least that part is now automatic.
I will admit its not 100% of the solution to the question, but however useful enough.
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Django South - table already exists
...re is more than one field missing you have to repeat it for each field.
3.Now you land with a bunch of new migrations so remove their files from myapp/migrations (0011 and further if you needed to add multiple fields).
4.Run this:
./manage.py migrate myapp 0010
Now try ./manage.py migrate myapp...
Does Python optimize tail recursion?
...ons.
The clean way: modifying the Y combinator
The Y combinator is well known; it allows to use lambda functions in a recursive
manner, but it doesn't allow by itself to embed recursive calls in a loop. Lambda
calculus alone can't do such a thing. A slight change in the Y combinator however
can pr...
How to dynamically create a class?
....DefineType call to include the static type as the last parameter (is null now)
– danijels
Oct 5 '10 at 9:49
2
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Navigation bar appear over the views with new iOS7 SDK
...hod.
Note: You should be using the latest GM release of iOS 7 and Xcode 5 now since the API has changed from beta versions.
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`from … import` vs `import .` [duplicate]
...e.
This makes all names from the module available in the local namespace.
Now let's see what happens when we do import X.Y:
>>> import sys
>>> import os.path
Check sys.modules with name os and os.path:
>>> sys.modules['os']
<module 'os' from '/System/Library/Framework...
Null coalescing in powershell
... evaluated
Null Conditional Assignment
$x = $null
$x ??= 100 # $x is now 100
$x ??= 200 # $x remains 100
Ternary Operator
$true ? "this value returned" : "this expression not evaluated"
$false ? "this expression not evaluated" : "this value returned"
Previous Versions:
No need for ...
Intel HAXM installation error - This computer does not support Intel Virtualization Technology (VT-x
...yper-V and Windows Hypervisor Platform options and restart your system.
Now, you can Start HAXM installation without any error.
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How can I get rid of an “unused variable” warning in Xcode?
... mark variable as used is… to use it.
BOOL saved = ...;
(void)saved; // now used
You may be happy with already described compiler-specific extensions, though.
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mysql_config not found when installing mysqldb python interface
...oo on openSUSE, where "libmysqlclient-dev" becomes "libmysqlclient-devel". Now the pip package installs fine. Thanks.
– pbarill
Nov 30 '13 at 4:14
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