我正在使用vim进行python开发,并将flake8作为linter。下面是包含元酶的示例代码。Flake8正在显示错误E999 SyntaxError:class Spam(metaclass=MyMeta)行上的无效语法(E)。我使用的是python3,这是在python3中指定自定义元类的正确语法。
class MyMeta(type):
def __new__(cls, clsname, bases, clsbody):
upper_case = {}
for k, v in clsbody.items():
if n
当我试图运行以下命令时,我收到了一个“无效语法”错误,我在下面粘贴了该错误
命令:
Orig_df['Generation'] = [Val if x > LBY and x < UBY for x in ['birth_year']]
错误
Orig_df['Generation'] = [Val if x > LBY and x < UBY for x in ['birth_year']]
不显示我在except块中作为异常引发的语法错误,以显示语法错误,它捕获了双括号无效语法错误并显示了无效语法。
try:
k=open('C:\\Users\\admin\\Desktop\\lol.txt'))
k.write("Helo World")
except SyntaxError:
print("There is a Syntax error")
except OSError:
print("The Error has OS Issues")
finally:
我有一个使用诗歌创建的pyproject.toml文件,我试图在这个目录中运行命令poetry install来创建一个poetry.lock文件。但是,当我运行诗歌安装时,会出现以下错误:
EnvCommandError
Command C:\Users\myName\AppData\Local\pypoetry\Cache\virtualenvs\my-app-name-kS94etse-py3.8\Scripts\python.exe -
errored with the following return code 3, and output:
Fatal P
这个片段工作得很好
if True: print "just True"
if (True): print "(True)"
正在研究循环,这些都很好
for i in range(1, 3):
print i
i = 0
while i < 3: # without paranthesis
print i
i = i + 1
i = 0
while (i < 3): # with paranthesis
print i
i = i + 1
当我试着
for (i in range(1, 3)):
def q1():
db.executescript(
DROP VIEW IF EXISTS q1;
CREATE VIEW q1 AS
SELECT C.company_name, A.price_amount
FROM companies as C, acquisitions as A
WHERE C.status = 'acquired' and C.company_name = A.company_name;
SELECT * FROM q1;
)
return
q1()
运行上面的代码时,我得到了以下错误: