blame_serde.py

import sys

with open(sys.argv[1]) as f:
    lines = (ln.strip() for ln in f)
    # Skip headers.
    assert next(lines).startswith("Lines")
    assert next(lines).startswith("-----")
    assert next(lines).endswith("(TOTAL)")
    # Sum up serde-related things vs total.
    totalLoC = 0
    serdeLoC = 0
    for ln in lines:
        (loc, _, _, _, name) = ln.strip().split(None, 4)
        totalLoC += int(loc)
        if "serde" in name.lower():
            serdeLoC += int(loc)
    # What's the damage?
    print("{} of {} LoC ({:.2f}%) can be blamed on serde".format(
      serdeLoC,
      totalLoC,
      (serdeLoC / totalLoC) * 100
    ))

gistfile1.txt

import sys

with open(sys.argv[1]) as f:
    lines = (ln.strip() for ln in f)
    # Skip headers.
    assert next(lines).startswith("Lines")
    assert next(lines).startswith("-----")
    assert next(lines).endswith("(TOTAL)")
    # Sum up serde-related things vs total.
    totalLoC = 0
    serdeLoC = 0
    for ln in lines:
        (loc, _, _, _, name) = ln.strip().split(None, 4)
        totalLoC += int(loc)
        if "serde" in name.lower():
            serdeLoC += int(loc)
    # What's the damage?
    print("{} of {} LoC ({:.2f}%) can be blamed on serde".format(
      serdeLoC,
      totalLoC,
      (serdeLoC / totalLoC) * 100
    ))