has_key was removed in Python 3. From the documentation:
- Removed
dict.has_key()– use theinoperator instead.
Here’s an example:
if start not in graph:
return Nonehas_key was removed in Python 3. From the documentation:
- Removed
dict.has_key()– use theinoperator instead.
Here’s an example:
if start not in graph:
return None