Fix IndexError in Python

Error Reference

IndexError: list index out of range

You accessed a position that doesn't exist. Here's how to avoid it.

Prevention tipsUse enumerations

Prevention

• Check length before accessing: if index < len(items): ...
• Use slicing or .get() (for dicts) to avoid direct indexing when optional.
• Prefer for item in items loops instead of manual indexes when possible.

Example fix

for i in range(len(users)):
    print(users[i])  # IndexError when users is empty

# Better:
for user in users:
    print(user)

Next up in your learning path

KeyError

Handle missing dictionary keys.

Related

List slicing

Manipulate lists safely with slices.

Companion

Loop control

Use continue/break to guard loops.

Practice