Python versions 3.5 do not allow keyword arguments after "expression
时间: 2024-04-14 10:25:37 浏览: 16
This error occurs in Python 3.5 when you try to pass keyword arguments after an expression. In Python 3.5 and earlier versions, keyword arguments must be passed before any positional arguments. To resolve this issue, you need to rearrange your code so that the keyword arguments are placed before the expression or positional arguments. Here's an example:
```python
# Incorrect code (Python 3.5 and earlier)
some_function(arg1, arg2, keyword_arg1=value1, keyword_arg2=value2)
# Corrected code
some_function(keyword_arg1=value1, keyword_arg2=value2, arg1, arg2)
```
By following this syntax, you can avoid the "keyword arguments after expression" error in Python 3.5.
相关问题
pymysql.connect(autocommit=True)在python3.11的环境下提示:Python versions 3.5 do not allow keyword arguments after " expression
I apologize for the confusion. It seems that the error you encountered is not related to the `autocommit` parameter specifically, but rather a syntax error related to keyword arguments in general.
In Python versions prior to 3.8, keyword arguments must be passed after any positional arguments. However, starting from Python 3.8, you can mix keyword arguments and positional arguments freely.
To resolve this issue in Python 3.5, you should either upgrade to a newer version of Python or modify your code to pass the `autocommit` parameter as a positional argument instead of a keyword argument.
Here's an example of how you can modify the code to work with Python 3.5:
```python
import pymysql
# Create database connection
connection = pymysql.connect(
'your_host',
'your_user',
'your_password',
'your_database',
autocommit=True
)
# Rest of the code...
```
By passing the arguments as positional arguments instead of keyword arguments, you should be able to avoid the syntax error in Python 3.5.
python versions compatibility
Python版本兼容性是指Python中不同版本之间的兼容性问题,即在不同版本中编写的代码是否能够在其他版本中正常运行。例如,Python 2和Python 3之间存在许多差异,因此在编写代码时需要注意,并进行必要的修改以保证在不同版本中的兼容性。同时,Python社区也在努力维护和改进版本之间的兼容性。
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