I'm switching to Python and actually liking it(cesarsotovalero.net)

    try:
      API_KEY = os.environ["API_KEY"]
    except KeyError:
      logger.exception("...")
      ...

    valid = True
    if not API_KEY:
        print("Missing YOUTUBE_API_KEY.")
        valid = False
    if not CHANNEL_ID:
        print("Missing YOUTUBE_CHANNEL_ID.")
        valid = False
    if not valid:
        exit(1)

  $ python3 -c "print('clear messaging'); exit(1)"
  clear messaging

  $ python3 -c "raise ValueError('text that matters')"
  Traceback (most recent call last):
    File "<string>", line 1, in <module>
  ValueError: text that matters

  perl <<'EOF'
  my $object = bless sub { my ($s) = @_; if ($s eq "thingy") { return("hello world!") } else { return("goodbye world!") } };
  my %hash1  = ( baz => "here we go", foo => $object );
  my @array1 = ( undef, undef, undef, \%hash1 );
  my %hash2  = ( bar => \@array1 );
  my $reference = \%hash2;

  print( $reference->{bar}->[3]->{baz}, "\n" );
  print( $reference->{bar}->[3]->{foo}->('thingy') , "\n" );
  print( $reference->{bar}->[3]->{foo}->('something') , "\n" );
  EOF
  here we go
  hello world!
  goodbye world!

  sudo apt install pipx
  pipx install yt-dlp

  import re
  import sys
  if re.match(r"[A-Za-z}", sys.stdin):
      print("ok")

    with connect(":memory:") as conn:
        c = conn.cursor()
        c.execute("SELECT * FROM oops WHERE NAME IN ('alpha, 'beta')")

  import json

  # language=json
  bogus = """{"this is subtly wrong"; true}"""

  json.loads(bogus)

  # and the same with tomllib:

  import tomllib
  # language=toml
  bogus = """
  [alpha]
  beta = []onoz
  """
  tomllib.loads(bogus)

  # or, if you have some tricky internal stuff

  def do_the_thing(
    # language=sql
    s: str
  ):
      with connect(something) as conn:
          c = conn.cursor()
          c.execute(s)

  do_the_thing("SELECT * FROM oops WHERE NAME IN ('alpha, 'beta')")
  #            ^^^ also gets syntax checked because it knows the first arg is SQL