Real-World Input → Output Examples¶
Here are some examples of raw tracebacks and their translated output using Error Translator.
Note: file/line/code context is only available when the input includes traceback location lines like File "...", line N.
Note: the CLI prints a Rich panel UI; examples below use normalized plain text labels for readability.
Example A: Type mismatch¶
Input traceback:
Traceback (most recent call last):
File "app.py", line 14, in <module>
total = "Users: " + 42
TypeError: can only concatenate str (not "int") to str
Translated output:
Detected Error:
TypeError: can only concatenate str (not "int") to str
Location: app.py (Line 14)
|
| total = "Users: " + 42
|
Explanation:
You are trying to add a string to an int, which Python cannot do.
Suggested Fix:
Convert the int to a string first using str() before concatenating.
Example B: Missing variable typo¶
Input error line:
Translated output:
Detected Error:
NameError: name 'usr_count' is not defined
Location: Unknown File (Line Unknown Line)
Explanation:
You tried to use a variable or function named 'usr_count', but Python doesn't recognize it.
Suggested Fix:
Check if 'usr_count' is spelled correctly, or ensure you defined/imported it before using it.
Example C: Index out of range¶
Input traceback:
Traceback (most recent call last):
File "script.py", line 3, in <module>
print(items[5])
IndexError: list index out of range
Translated output:
Detected Error:
IndexError: list index out of range
Location: script.py (Line 3)
|
| print(items[5])
|
Explanation:
You tried to access an index (position 5) that doesn't exist in the list.
Suggested Fix:
Check the length of the list using len(items) - 1 to find the last valid index.
Example D: Key not found in dictionary¶
Input error line:
Translated output:
Detected Error:
KeyError: 'age'
Location: Unknown File (Line Unknown Line)
Explanation:
You tried to access a dictionary key ('age') that doesn't exist.
Suggested Fix:
Use dict.get('age', default_value) to safely retrieve the key with a fallback,
or ensure the key is set before accessing it.
Example E: Division by zero¶
Input error line:
Translated output:
Detected Error:
ZeroDivisionError: division by zero
Location: Unknown File (Line Unknown Line)
Explanation:
You attempted to divide a number by zero, which is mathematically undefined.
Suggested Fix:
Add a condition to check if the denominator is zero before performing division.
Example F: File not found¶
Input traceback:
Traceback (most recent call last):
File "reader.py", line 2, in <module>
with open('data.csv', 'r') as f:
FileNotFoundError: [Errno 2] No such file or directory: 'data.csv'
Translated output:
Detected Error:
FileNotFoundError: [Errno 2] No such file or directory: 'data.csv'
Location: reader.py (Line 2)
|
| with open('data.csv', 'r') as f:
|
Explanation:
Python cannot find the file 'data.csv' in the current working directory.
Suggested Fix:
Verify the file path and name. Use os.path.exists() to check before opening,
or provide an absolute path.
Example G: Attribute error on wrong type¶
Input error line:
Translated output:
Detected Error:
AttributeError: 'int' object has no attribute 'append'
Location: Unknown File (Line Unknown Line)
Explanation:
You are trying to call .append() on an integer. .append() is a method for lists.
Suggested Fix:
If you meant to collect multiple values, initialize a list instead (my_list = []).
If you're working with a single integer, review what operation you intended.
Example H: Import module not found¶
Input error line:
Translated output:
Detected Error:
ModuleNotFoundError: No module named 'requests'
Location: Unknown File (Line Unknown Line)
Explanation:
Python cannot find the 'requests' module. It is not part of the standard library
and needs to be installed separately or you have a typo in the module name.
Suggested Fix:
Install the missing package using pip: pip install requests.
If the module is your own file, check the import path and file location.
Example I: Indentation mismatch¶
Input traceback:
Traceback (most recent call last):
File "script.py", line 5
print("Hello")
^
IndentationError: expected an indented block
Translated output:
Detected Error:
IndentationError: expected an indented block
Location: script.py (Line 5)
|
| print("Hello")
|
Explanation:
Python uses indentation to define blocks of code. You likely forgot to indent
after a statement that expects a nested block (e.g., after if, for, def).
Suggested Fix:
Add consistent spaces or tabs to the line after the colon. Use 4 spaces per level.
Example J: Value conversion error¶
Input error line:
Translated output:
Detected Error:
ValueError: invalid literal for int() with base 10: '42.5'
Location: Unknown File (Line Unknown Line)
Explanation:
You are trying to convert the string '42.5' to an integer, but it contains a
decimal point, so it's not a valid whole number.
Suggested Fix:
If you need to keep the fractional part, use float() instead of int().
If you want to truncate, convert to float first then to int: int(float('42.5')).
Example K: Recursion limit exceeded¶
Input traceback:
Traceback (most recent call last):
File "recursive.py", line 4, in <module>
infinite()
File "recursive.py", line 2, in infinite
return infinite()
File "recursive.py", line 2, in infinite
return infinite()
...
RecursionError: maximum recursion depth exceeded
Translated output:
Detected Error:
RecursionError: maximum recursion depth exceeded
Location: recursive.py (Line 2)
|
| return infinite()
|
Explanation:
A function is calling itself so many times that Python's recursion limit has been reached. This usually happens when a recursive function lacks a proper base case or stop condition.
Suggested Fix:
Add a base case to stop the recursion. Check that the function arguments change in each call to eventually reach the base case. If deep recursion is intentional, you can increase the limit with sys.setrecursionlimit(), but restructuring the code to use iteration is often safer.