ImportError: cannot import name error occurs when an imported class is not accessible or is in a circular dependency.
What Causes ImportError: Cannot Import Name
This error generally occurs when a class cannot be imported due to one of the following reasons:
- The imported class is in a circular dependency.
- The imported class is unavailable or was not created.
- The imported class name is misspelled.
- The imported class from a module is misplaced.
- The imported class is unavailable in the Python library.
Python ImportError: Cannot Import Name Example
Here’s an example of a Python
ImportError: cannot import name thrown due to a circular dependency. Two python modules
test2.py are created to achieve this:
from test2 import Class2 class Class1: obj = Class2()
from test1 import Class1 class Class2: obj = Class1()
In the above example, the initialization of
test1 depends on
test2 depends on
test1. This is a circular dependency since both files attempt to load each other. Therefore, running
test2.py) causes an
ImportError: cannot import name error:
Traceback (most recent call last): File "test1.py", line 1, in
from test2 import Class2 File "test2.py", line 1, in from test1 import Class1 File "test1.py", line 1, in from test2 import Class2 ImportError: cannot import name 'Class2' from partially initialized module 'test2' (most likely due to a circular import) (test2.py)
How to Fix ImportError: Cannot Import Name in Python
ImportError: cannot import name can be fixed using the following approaches, depending on the cause of the error:
- If the error occurs due to a circular dependency, it can be resolved by moving the imported classes to a third file and importing them from this file.
- If the error occurs due to a misspelled name, the name of the class in the Python file should be verified and corrected.
- If the imported class is unavailable or not created, the file should be checked to ensure that the imported class exists in the file. If not, it should be created.
- If the imported class from a module is misplaced, it should be ensured that the class is imported from the correct module.
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