为什么pylint在函数外部需要大写变量名?
Why does pylint require capitalized variable names when outside a function?
为什么pylint在函数外部接受大写变量而在函数内部拒绝它们?相反,为什么 pylint 拒绝函数外的 camelCase 并在函数内部接受它?
我刚刚安装了pylint(版本2.2.2)来检查我的Python 3.一定有什么我遗漏的。我的相关 Python/package 版本是:
pylint 2.2.2
astroid 2.1.0
Python 3.6.7 | packaged by conda-forge | (default, Nov 20 2018, 18:20:05)
[GCC 4.2.1 Compatible Apple LLVM 9.0.0 (clang-900.0.37)]
考虑以下代码 (test_1),我在其中使用驼峰命名法和大写字母命名变量。 Capitalized 变量被接受(为什么?)并且 camelCase 被拒绝(因为代码没有包装到函数中,我猜)。
'''
Nothing important
'''
fileHandler = open("afile.txt")
for line in fileHandler:
Token = line.split("\t")
Part_1 = Token[0]
print(Part_1)
调用pylint时给出:
$ pylint --py3k --enable=all test_1.py
************* Module test_1
test_1.py:5:0: C0103: Constant name "fileHandler" doesn't conform to UPPER_CASE naming style (invalid-name)
------------------------------------------------------------------
Your code has been rated at 8.00/10 (previous run: 8.00/10, +0.00)
现在,如果我将所有内容都放入一个函数中 (test_2)。
'''
Nothing important
'''
def foo():
fileHandler = open("afile.txt")
for line in fileHandler:
Token = line.split("\t")
Part_1 = Token[0]
print(Part_1)
if __name__ == '__main__':
foo()
然后大写变量被检测为不合规(这是我所期望的):
$ pylint --py3k --enable=all test_2.py
************* Module test_2
test_2.py:5:0: C0102: Black listed name "foo" (blacklisted-name)
test_2.py:5:0: C0111: Missing function docstring (missing-docstring)
test_2.py:6:4: C0103: Variable name "fileHandler" doesn't conform to snake_case naming style (invalid-name)
test_2.py:9:8: C0103: Variable name "Token" doesn't conform to snake_case naming style (invalid-name)
test_2.py:10:8: C0103: Variable name "Part_1" doesn't conform to snake_case naming style (invalid-name)
------------------------------------------------------------------
Your code has been rated at 3.75/10 (previous run: 3.75/10, +0.00)
我有些不清楚...欢迎任何澄清...
最佳
当您将变量放入函数内时,pylint 不再 "sees" 它们作为常量。将变量放入函数 pylint "sees" 后,它们作为普通变量,不再需要将它们大写,而是需要 "snake_case." 注意,pylint 默认情况下更喜欢 snake_case
而不是 camelCase
, 但您可以 .pylintrc
中的 override this 更喜欢驼峰式。
Python 脚本(无方法)
#!/usr/bin/env python3
# pylint wants 'FILEHANDLER'
fileHandler = open("afile.txt") # <-- pylint sees constant, wants UPPER_CASE
for line in fileHandler:
Token = line.split("\t")
Part_1 = Token[0]
print(Part_1)
有方法
#!/usr/bin/env python3
def run_stuff():
# pylint wants 'file_handler'
fileHandler = open("afile.txt") # <-- pylint sees normal variable
for line in fileHandler:
Token = line.split("\t")
Part_1 = Token[0]
print(Part_1)
if __name__ == '__main__':
run_stuff()
通常,.pylintrc 文件会跟在 PEP8. If none is provided, it will default to PEP8 as noted on the pylint website 之后。快乐 linting!
我对在 for 循环中接受的大写变量(即以大写字母开头,例如 Token,Part_1)感到困惑(参见 test_1),而它们本应被拒绝了。我在 github 中发布了一个问题。这个问题揭示了 pylint 中的一个错误。
https://github.com/PyCQA/pylint/issues/2695
为什么pylint在函数外部接受大写变量而在函数内部拒绝它们?相反,为什么 pylint 拒绝函数外的 camelCase 并在函数内部接受它?
我刚刚安装了pylint(版本2.2.2)来检查我的Python 3.一定有什么我遗漏的。我的相关 Python/package 版本是:
pylint 2.2.2
astroid 2.1.0
Python 3.6.7 | packaged by conda-forge | (default, Nov 20 2018, 18:20:05)
[GCC 4.2.1 Compatible Apple LLVM 9.0.0 (clang-900.0.37)]
考虑以下代码 (test_1),我在其中使用驼峰命名法和大写字母命名变量。 Capitalized 变量被接受(为什么?)并且 camelCase 被拒绝(因为代码没有包装到函数中,我猜)。
'''
Nothing important
'''
fileHandler = open("afile.txt")
for line in fileHandler:
Token = line.split("\t")
Part_1 = Token[0]
print(Part_1)
调用pylint时给出:
$ pylint --py3k --enable=all test_1.py
************* Module test_1
test_1.py:5:0: C0103: Constant name "fileHandler" doesn't conform to UPPER_CASE naming style (invalid-name)
------------------------------------------------------------------
Your code has been rated at 8.00/10 (previous run: 8.00/10, +0.00)
现在,如果我将所有内容都放入一个函数中 (test_2)。
'''
Nothing important
'''
def foo():
fileHandler = open("afile.txt")
for line in fileHandler:
Token = line.split("\t")
Part_1 = Token[0]
print(Part_1)
if __name__ == '__main__':
foo()
然后大写变量被检测为不合规(这是我所期望的):
$ pylint --py3k --enable=all test_2.py
************* Module test_2
test_2.py:5:0: C0102: Black listed name "foo" (blacklisted-name)
test_2.py:5:0: C0111: Missing function docstring (missing-docstring)
test_2.py:6:4: C0103: Variable name "fileHandler" doesn't conform to snake_case naming style (invalid-name)
test_2.py:9:8: C0103: Variable name "Token" doesn't conform to snake_case naming style (invalid-name)
test_2.py:10:8: C0103: Variable name "Part_1" doesn't conform to snake_case naming style (invalid-name)
------------------------------------------------------------------
Your code has been rated at 3.75/10 (previous run: 3.75/10, +0.00)
我有些不清楚...欢迎任何澄清...
最佳
当您将变量放入函数内时,pylint 不再 "sees" 它们作为常量。将变量放入函数 pylint "sees" 后,它们作为普通变量,不再需要将它们大写,而是需要 "snake_case." 注意,pylint 默认情况下更喜欢 snake_case
而不是 camelCase
, 但您可以 .pylintrc
中的 override this 更喜欢驼峰式。
Python 脚本(无方法)
#!/usr/bin/env python3
# pylint wants 'FILEHANDLER'
fileHandler = open("afile.txt") # <-- pylint sees constant, wants UPPER_CASE
for line in fileHandler:
Token = line.split("\t")
Part_1 = Token[0]
print(Part_1)
有方法
#!/usr/bin/env python3
def run_stuff():
# pylint wants 'file_handler'
fileHandler = open("afile.txt") # <-- pylint sees normal variable
for line in fileHandler:
Token = line.split("\t")
Part_1 = Token[0]
print(Part_1)
if __name__ == '__main__':
run_stuff()
通常,.pylintrc 文件会跟在 PEP8. If none is provided, it will default to PEP8 as noted on the pylint website 之后。快乐 linting!
我对在 for 循环中接受的大写变量(即以大写字母开头,例如 Token,Part_1)感到困惑(参见 test_1),而它们本应被拒绝了。我在 github 中发布了一个问题。这个问题揭示了 pylint 中的一个错误。 https://github.com/PyCQA/pylint/issues/2695