circuitpython/tests/cpydiff/modules_os_getenv_argcount.py
David Lechner 3dc324d3f1 tests: Format all Python code with black, except tests in basics subdir.
This adds the Python files in the tests/ directory to be formatted with
./tools/codeformat.py.  The basics/ subdirectory is excluded for now so we
aren't changing too much at once.

In a few places `# fmt: off`/`# fmt: on` was used where the code had
special formatting for readability or where the test was actually testing
the specific formatting.
2020-03-30 13:21:58 +11:00

15 lines
370 B
Python

"""
categories: Modules,os
description: ``getenv`` only allows one argument
cause: Unknown
workaround: Test that the return value is ``None``
"""
import os
try:
print(os.getenv("NEW_VARIABLE", "DEFAULT"))
except TypeError:
print("should not get here")
# this assumes NEW_VARIABLE is never an empty variable
print(os.getenv("NEW_VARIABLE") or "DEFAULT")