Replace master with main

Fixes RustPython#3067

Author: fanninpm

.github/workflows/ci.yaml

@@ -1,6 +1,6 @@
 on:
   push:
-    branches: [master, release]
+    branches: [main, release]
   pull_request:
 
 name: CI

README.md

@@ -6,7 +6,7 @@ A Python-3 (CPython >= 3.8.0) Interpreter written in Rust :snake: :scream:
 :metal:.
 
 [![Build Status](https://github.com/RustPython/RustPython/workflows/CI/badge.svg)](https://github.com/RustPython/RustPython/actions?query=workflow%3ACI)
-[![codecov](https://codecov.io/gh/RustPython/RustPython/branch/master/graph/badge.svg)](https://codecov.io/gh/RustPython/RustPython)
+[![codecov](https://codecov.io/gh/RustPython/RustPython/branch/main/graph/badge.svg)](https://codecov.io/gh/RustPython/RustPython)
 [![License: MIT](https://img.shields.io/badge/License-MIT-green.svg)](https://opensource.org/licenses/MIT)
 [![Contributors](https://img.shields.io/github/contributors/RustPython/RustPython.svg)](https://github.com/RustPython/RustPython/graphs/contributors)
 [![Gitter](https://badges.gitter.im/RustPython/Lobby.svg)](https://gitter.im/rustpython/Lobby)

bytecode/src/lib.rs

@@ -1,7 +1,7 @@
 //! Implement python as a virtual machine with bytecodes. This module
 //! implements bytecode structure.
 
-#![doc(html_logo_url = "https://raw.zhiqian.eu.org/RustPython/RustPython/master/logo.png")]
+#![doc(html_logo_url = "https://raw.zhiqian.eu.org/RustPython/RustPython/main/logo.png")]
 #![doc(html_root_url = "https://docs.rs/rustpython-bytecode/")]
 
 use bitflags::bitflags;

compiler/src/compile.rs

@@ -2,7 +2,7 @@
 //! Take an AST and transform it into bytecode
 //!
 //! Inspirational code:
-//!   https://github.com/python/cpython/blob/master/Python/compile.c
+//!   https://github.com/python/cpython/blob/main/Python/compile.c
 //!   https://github.com/micropython/micropython/blob/master/py/compile.c
 
 use crate::ir::{self, CodeInfo};

compiler/src/lib.rs

@@ -1,5 +1,5 @@
 //! Compile a Python AST or source code into bytecode consumable by RustPython.
-#![doc(html_logo_url = "https://raw.zhiqian.eu.org/RustPython/RustPython/master/logo.png")]
+#![doc(html_logo_url = "https://raw.zhiqian.eu.org/RustPython/RustPython/main/logo.png")]
 #![doc(html_root_url = "https://docs.rs/rustpython-compiler/")]
 
 #[macro_use]

compiler/src/symboltable.rs

@@ -4,7 +4,7 @@ This ensures that global and nonlocal keywords are picked up.
 Then the compiler can use the symbol table to generate proper
 load and store instructions for names.
 
-Inspirational file: https://github.com/python/cpython/blob/master/Python/symtable.c
+Inspirational file: https://github.com/python/cpython/blob/main/Python/symtable.c
 */
 
 use crate::error::{CompileError, CompileErrorType};
@@ -196,7 +196,7 @@ impl std::fmt::Debug for SymbolTable {
 }
 
 /* Perform some sort of analysis on nonlocals, globals etc..
-  See also: https://github.com/python/cpython/blob/master/Python/symtable.c#L410
+  See also: https://github.com/python/cpython/blob/main/Python/symtable.c#L410
 */
 fn analyze_symbol_table(symbol_table: &mut SymbolTable) -> SymbolTableResult {
     let mut analyzer = SymbolTableAnalyzer::default();
@@ -760,7 +760,7 @@ impl SymbolTableBuilder {
                 value,
                 simple,
             } => {
-                // https://github.com/python/cpython/blob/master/Python/symtable.c#L1233
+                // https://github.com/python/cpython/blob/main/Python/symtable.c#L1233
                 match &target.node {
                     ast::ExprKind::Name { id, .. } if *simple => {
                         self.register_name(id, SymbolUsage::AnnotationAssigned, location)?;

derive/src/lib.rs

@@ -1,5 +1,5 @@
 #![recursion_limit = "128"]
-#![doc(html_logo_url = "https://raw.zhiqian.eu.org/RustPython/RustPython/master/logo.png")]
+#![doc(html_logo_url = "https://raw.zhiqian.eu.org/RustPython/RustPython/main/logo.png")]
 #![doc(html_root_url = "https://docs.rs/rustpython-derive/")]
 
 extern crate proc_macro;

extra_tests/snippets/stdlib_imghdr.py

@@ -1,5 +1,5 @@
 # unittest for modified imghdr.py
-# Should be replace it into https://github.com/python/cpython/blob/master/Lib/test/test_imghdr.py
+# Should be replace it into https://github.com/python/cpython/blob/main/Lib/test/test_imghdr.py
 import os
 import imghdr
 

parser/src/lib.rs

@@ -15,7 +15,7 @@
 //!
 //! ```
 
-#![doc(html_logo_url = "https://raw.zhiqian.eu.org/RustPython/RustPython/master/logo.png")]
+#![doc(html_logo_url = "https://raw.zhiqian.eu.org/RustPython/RustPython/main/logo.png")]
 #![doc(html_root_url = "https://docs.rs/rustpython-parser/")]
 
 #[macro_use]

vm/src/builtins/function.rs

@@ -81,7 +81,7 @@ impl PyFunction {
         // the proper variables keeping into account default values
         // and starargs and kwargs.
         // See also: PyEval_EvalCodeWithName in cpython:
-        // https://github.com/python/cpython/blob/master/Python/ceval.c#L3681
+        // https://github.com/python/cpython/blob/main/Python/ceval.c#L3681
 
         let mut fastlocals = frame.fastlocals.lock();