🕵️ Stack Trace Lineup

from pathlib import Path
Path("/tmp/definitely_not_here_xyz").rmdir()

Traceback (most recent call last):
  File "lineup.py", line 2, in <module>
    Path("/tmp/definitely_not_here_xyz").rmdir()
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
FileNotFoundError: [Errno 2] No such file or directory: '/tmp/definitely_not_here_xyz'

import gzip
with open("/tmp/plain.txt", "wb") as f:
    f.write(b"not gzipped")
gzip.open("/tmp/plain.txt").read()

Traceback (most recent call last):
  File "lineup.py", line 4, in <module>
    gzip.open("/tmp/plain.txt").read()
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
gzip.BadGzipFile: Not a gzipped file (b'no')

import struct
struct.pack("i", "not int")

Traceback (most recent call last):
  File "lineup.py", line 2, in <module>
    struct.pack("i", "not int")
    ~~~~~~~~~~~^^^^^^^^^^^^^^^^
struct.error: required argument is not an integer

from dataclasses import dataclass

@dataclass(eq=False, frozen=True)
class P:
    x: int

p = P(1)
p.x = 99

Traceback (most recent call last):
  File "lineup.py", line 8, in <module>
    p.x = 99
    ^^^^^^^^
dataclasses.FrozenInstanceError: cannot assign to field 'x'

import heapq
print(heapq.nsmallest(2, {"b": 5, "a": 3}))

Traceback (most recent call last):
  File "lineup.py", line 2, in <module>
    print(heapq.nsmallest(2, {"b": 5, "a": 3}))
          ~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^
KeyError: 'heap key lookup on dict'