The Python Development Mode introduces additional runtime checks that are too expensive to be enabled by default. It should not be more verbose than the default if the code is correct; new warnings...| Python documentation
Source code: Lib/tracemalloc.py The tracemalloc module is a debug tool to trace memory blocks allocated by Python. It provides the following information: Traceback where an object was allocated, St...| Python documentation
Source code: Lib/warnings.py Warning messages are typically issued in situations where it is useful to alert the user of some condition in a program, where that condition (normally) doesn’t warrant...| Python documentation
The CPython interpreter scans the command line and the environment for various settings. CPython implementation detail: Other implementations’ command line schemes may differ. See Alternate Impleme...| Python documentation
Assert that two numbers (or two ordered sequences of numbers) are equal to each other| docs.pytest.org