Concatenated f-string does not issue F541 ("f-string is missing placeholders")
flaviovs opened this issue · comments
how did you install flake8?
pip install flake8
unmodified output of flake8 --bug-report
{
"platform": {
"python_implementation": "CPython",
"python_version": "3.9.2",
"system": "Linux"
},
"plugins": [
{
"plugin": "flake8-bugbear",
"version": "23.2.13"
},
{
"plugin": "flake8-builtins",
"version": "2.1.0"
},
{
"plugin": "flake8-docstrings",
"version": "1.7.0"
},
{
"plugin": "flake8-eradicate",
"version": "1.4.0"
},
{
"plugin": "flake8-tidy-imports",
"version": "4.8.0"
},
{
"plugin": "mccabe",
"version": "0.7.0"
},
{
"plugin": "pycodestyle",
"version": "2.9.1"
},
{
"plugin": "pyflakes",
"version": "2.5.0"
}
],
"version": "5.0.4"
}
describe the problem
what I expected to happen
A F541 (f-string is missing placeholders) warning, even for f-string missing placeholders that are concatenated with others f-strings that have them.
sample code
foo = 'bar'
print(f'{foo}' f'foo')
commands ran
$ flake8 t.py
Note: command gives no output.
Notes
If the first string is not a f-string, then the warning is correctly issued:
foo = 'bar'
print('foo' f'foo')
$ flake8
./t.py:3:7: F541 f-string is missing placeholders
please read the issue template, as well as the prompts before the issue template