bpo-40939: Remove the old parser (GH-20768)

This commit removes the old parser, the deprecated parser module, the old parser compatibility flags and environment variables and all associated support code and documentation.

1 files changed, 0 insertions, 43 deletions

diff --git a/Parser/pgen/__main__.py b/Parser/pgen/__main__.py
deleted file mode 100644
index d3780a7b77..0000000000
--- a/Parser/pgen/__main__.py
+++ /dev/null
@@ -1,43 +0,0 @@
-import argparse
-
-from .pgen import ParserGenerator
-
-
-def main():
-    parser = argparse.ArgumentParser(description="Parser generator main program.")
-    parser.add_argument(
-        "grammar", type=str, help="The file with the grammar definition in EBNF format"
-    )
-    parser.add_argument("tokens", type=str, help="The file with the token definitions")
-    parser.add_argument(
-        "graminit_h",
-        type=argparse.FileType("w"),
-        help="The path to write the grammar's non-terminals as #defines",
-    )
-    parser.add_argument(
-        "graminit_c",
-        type=argparse.FileType("w"),
-        help="The path to write the grammar as initialized data",
-    )
-
-    parser.add_argument("--verbose", "-v", action="count")
-    parser.add_argument(
-        "--graph",
-        type=argparse.FileType("w"),
-        action="store",
-        metavar="GRAPH_OUTPUT_FILE",
-        help="Dumps a DOT representation of the generated automata in a file",
-    )
-
-    args = parser.parse_args()
-
-    p = ParserGenerator(
-        args.grammar, args.tokens, verbose=args.verbose, graph_file=args.graph
-    )
-    grammar = p.make_grammar()
-    grammar.produce_graminit_h(args.graminit_h.write)
-    grammar.produce_graminit_c(args.graminit_c.write)
-
-
-if __name__ == "__main__":
-    main()