Sometimes, we want to avoid "RuntimeError: dictionary changed size during iteration" error with Python.
In this article, we’ll look at how to avoid "RuntimeError: dictionary changed size during iteration" error with Python.
How to avoid "RuntimeError: dictionary changed size during iteration" error with Python?
To avoid "RuntimeError: dictionary changed size during iteration" error with Python, we’ve to make a copy of the dict before we can modify the original in a loop.
For instance, we write
for i in list(d):
# ...
to call list with dict d to make a copy of d and get the keys from the copied dict.
Conclusion
To avoid "RuntimeError: dictionary changed size during iteration" error with Python, we’ve to make a copy of the dict before we can modify the original in a loop.
