Code Claim Fact-Check: Does Def Before Colon Match If True Statement
“The words used for def before the (): needs to match the part under if true if True: do_project_A() do_project_B()”
Summary
In Python, the identifier after `def` (the function name) does not need to correspond to any text in an `if` statement. The `if` condition is evaluated independently, and the block under it runs when the condition evaluates to `True`, regardless of the function’s name.
Sources 60 searched
- 1.4.5 The if __name__ == "__main__": conditional | GEOG 489: Advanced Python Programming for GIS
A good coding principle to follow ... code (functions, classes) at the top, with direct executable code guarded inside if __name__ == "__main__": for testing or setting variables if the script is executed directly. This may seem like a counterintuitive structure to the way Python reads in scripts (top-to-bottom), but the variables created in the if __name__ == "__main__": block are set at ...
- 3.1. If Statements — Hands-on Python Tutorial for Python 3
Each code section has a long if-elif-else test to see which button was clicked, and sets the color of the picture element appropriately. '''Make a choice of colors via mouse clicks in Rectangles -- A demonstration of Boolean operators and Boolean functions.''' from graphics import * def isBetween(x, end1, end2): '''Return True if x is between the ends or equal to either.
- School of Computing - Learning Python
... When a module is imported, ... automatically. ... In this scenario, since the script is run directly, the condition if __name__ == "__main__": evaluates to True, and the code inside the block ......
- Python Errors — MF 602, Boston University
This means that a function must have at least one line of code. It also means that a conditional must have at least one line of code to run if the condition is true. Take, for example, the following incorrect function: def missing_block(num): if num > 10: elif num % 2 == 1: print("number can't ...
- PEP 8 – Style Guide for Python Code | peps.python.org
# Wrong: # Arguments on first line forbidden when not using vertical alignment. foo = long_function_name(var_one, var_two, var_three, var_four) # Further indentation required as indentation is not distinguishable. def long_function_name( var_one, var_two, var_three, var_four): print(var_one) The 4-space rule is optional for continuation lines. ... # Hanging indents *may* be indented to other than 4 spaces. foo = long_function_name( var_one, var_two, var_three, var_four) When the conditional part of an if-statement is long enough to require that it be written across multiple lines, it’s worth noting that the combination of a two character keyword (i.e.
- PEP 8 -- Style Guide for Python Code | Python.org
# Wrong: # Arguments on first line forbidden when not using vertical alignment. foo = long_function_name(var_one, var_two, var_three, var_four) # Further indentation required as indentation is not distinguishable. def long_function_name( var_one, var_two, var_three, var_four): print(var_one) The 4-space rule is optional for continuation lines. ... # Hanging indents *may* be indented to other than 4 spaces. foo = long_function_name( var_one, var_two, var_three, var_four) When the conditional part of an if-statement is long enough to require that it be written across multiple lines, it's worth noting that the combination of a two character keyword (i.e.
- 4. More Control Flow Tools — Python 3.14.5 documentation
As well as the while statement just introduced, Python uses a few more that we will encounter in this chapter. if Statements: Perhaps the most well-known statement type is the if statement. For exa...
- 8. Compound statements — Python 3.14.5 documentation
Conversely, do not rely on variables remaining unchanged after a failed match. The exact behavior is dependent on implementation and may vary. This is an intentional decision made to allow different implementations to add optimizations. If the pattern succeeds, the corresponding guard (if present) is evaluated. In this case all name bindings are guaranteed to have happened. If the guard evaluates as true or is missing, the block inside case_block is executed.
- Truthy and Falsy Values in Python: A Detailed Introduction
Expressions with operands and operators evaluate to either True or False and they can be used in an if or while condition to determine if a code block should run.
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