ImportError: attempted relativeimportwithno known parentpackage 使用python -m则可以避免这个问题: python -m my_package.module 4.调试已安装的第三方模块 如果你想调试已安装的模块,可以通过python -m运行。例如,运行Pip的命令行工具: python -m pip install requests ...
If you’ve worked on a Python project that has more than one file, chances are you’ve had to use an import statement before. In this tutorial, you’ll not only cover the pros and cons of absolute and relative imports but also learn about the best practi
常规导入(regular imports) 使用from语句导入 相对导入(relative imports) 可选导入(optional imports) 本地导入(local imports) 1. 常规导入 常规导入 常规导入应该是最常使用的导入方式,大概是这样的: import sys 1. 你只需要使用import一词,然后指定你希望导入的模块或包即可。通过这种方式导入的好处是可以一次性...
参考Python 的 PEP 328提案,相对导入基于模块的__name__变量进行搜索。 Relative imports use a module'snameattribute to determine that module's position in the package hierarchy. If the module's name does not contain any package information (e.g. it is set to 'main') then relative imports are...
The simplest fix for this case, assuming the namemymoduleis globally unique, would be to avoid using relative imports, and just use... frommymoduleimportas_int ...although, if it's not unique, or your package structure is more complex, you'll need to include the directory containing your...
In fact, all imports in world could have been done explicitly with similar absolute imports. Relative imports must be in the form from...import, and the location you’re importing from must start with a dot. The PEP 8 style guide recommends using absolute imports in general. However, relat...
This is an issue because “printer” itself is not in a package. Relative imports only work within packages. To solve this issue, we need to change the directory structure of our project. We need to add our “printer” file and our “app” folder into its own directory so that “...
参考官方文档:PEP 366 - Main module explicit relative imports 经验总结: 相对导入生效的关键在于__package__和sys.path,__name__取值为__main__或者模块名,并非必要因素。 """ # 对路径/test/ ├── ecommerce │ ├── __init__.py │ ├── database.py ...
(dataframe1 = None, dataframe2 = None):# Execution logic goes hereprint(f'Input pandas.DataFrame #1:{dataframe1}')# Test the custom defined Python functiondataframe1 = my_func(dataframe1)# Test to read custom uploaded files by relative pathwithopen('./Script Bundle/my_sample.txt','r...
if not package: raise TypeError("relative imports require the 'package' argument") level = 0 for character in name: if character != '.': break level += 1 if not hasattr(package, 'rindex'): raise ValueError("'package' not set to a string") ...