undefined variable & scoping rules
1462
UnboundLocalError on local variable when reassigned after first use
22317
False positive "undefined variable" error when compiling SCSS
33125
Unbound Local Error with global variable
2701
Assigning to variable from parent function: "Local variable referenced before assignment"
87784
Do class functions/variables have to be declared before being used?
88588
php $_GET and undefined index
50915
Undefined variable problem with PHP function
9266
Why does Chrome debugger think closed local variable is undefined?
14660
Undefined variable as function argument javascript
134996
How can I temporarily disable the "return value might be undefined" warning?
62927
Python scope: "UnboundLocalError: local variable 'c' referenced before assignment"
111813
Getting All Variables In Scope
138754
Variable scoping in Module
149350
'foo' was not declared in this scope c++
140230
C# variable scoping: 'x' cannot be declared in this scope because it would give a different meaning to 'x'
116133
Why do I get an "undefined reference" link error for a static member variable?
128203
Python global variable scoping