🕵️ Stack Trace Lineup

def fib(n):
    if n < 2: return n
    return fib(n-1) + fib(n-2)

print(fib(1500))

Traceback (most recent call last):
  File "lineup.py", line 5, in <module>
    print(fib(1500))
          ~~~^^^^^^
  File "lineup.py", line 3, in fib
    return fib(n-1) + fib(n-2)
           ~~~^^^^^
  [Previous line repeated 996 more times]
RecursionError: maximum recursion depth exceeded

import json
raw = '{"name": "ada", broken}'
data = json.loads(raw)
print(data)

Traceback (most recent call last):
  File "lineup.py", line 3, in <module>
    data = json.loads(raw)
           ~~~~~~~~~~^^^^^
SyntaxError: invalid syntax (line 1, char 18)

with open("nope.txt") as f:
    content = f.read()
print(content)

Traceback (most recent call last):
  File "lineup.py", line 1, in <module>
    with open("nope.txt") as f:
         ~~~~^^^^^^^^^^^^
FileNotFoundError: [Errno 2] No such file or directory: 'nope.txt'

from itertools import count
for i in count():
    print(i)
    if i == 3: break

for i in count():
    pass

Traceback (most recent call last):
  File "lineup.py", line 7, in <module>
    pass
KeyboardInterrupt

class Point:
    __slots__ = ("x", "y")
    def __init__(self):
        self.x, self.y = 0, 0

p = Point()
p.z = 3

Traceback (most recent call last):
  File "lineup.py", line 7, in <module>
    p.z = 3
    ^^^
AttributeError: 'Point' object has no attribute 'z' and no __dict__ for setting new attributes