Merge pull request #3399 from JPHutchins/feature/speedup-imports

feat: speedup import time using sys.platform

CONTRIBUTORS.md

@@ -25,6 +25,7 @@ The following people have contributed to the development of Rich:
 - [Kenneth Hoste](https://github.com/boegel)
 - [Lanqing Huang](https://github.com/lqhuang)
 - [Finn Hughes](https://github.com/finnhughes)
+- [JP Hutchins](https://github.com/JPhutchins)
 - [Ionite](https://github.com/ionite34)
 - [Josh Karpel](https://github.com/JoshKarpel)
 - [Jan Katins](https://github.com/jankatins)

rich/color.py

@@ -1,5 +1,5 @@
-import platform
 import re
+import sys
 from colorsys import rgb_to_hls
 from enum import IntEnum
 from functools import lru_cache
@@ -15,7 +15,7 @@ if TYPE_CHECKING:  # pragma: no cover
     from .text import Text
 
 
-WINDOWS = platform.system() == "Windows"
+WINDOWS = sys.platform == "win32"
 
 
 class ColorSystem(IntEnum):

rich/console.py

@@ -1,6 +1,5 @@
 import inspect
 import os
-import platform
 import sys
 import threading
 import zlib
@@ -76,7 +75,7 @@ if TYPE_CHECKING:
 
 JUPYTER_DEFAULT_COLUMNS = 115
 JUPYTER_DEFAULT_LINES = 100
-WINDOWS = platform.system() == "Windows"
+WINDOWS = sys.platform == "win32"
 
 HighlighterType = Callable[[Union[str, "Text"]], "Text"]
 JustifyMethod = Literal["default", "left", "center", "right", "full"]

rich/syntax.py

@@ -1,5 +1,4 @@
 import os.path
-import platform
 import re
 import sys
 import textwrap
@@ -52,7 +51,7 @@ from .text import Text
 
 TokenType = Tuple[str, ...]
 
-WINDOWS = platform.system() == "Windows"
+WINDOWS = sys.platform == "win32"
 DEFAULT_THEME = "monokai"
 
 # The following styles are based on https://github.com/pygments/pygments/blob/master/pygments/formatters/terminal.py

rich/traceback.py

@@ -2,7 +2,6 @@ from __future__ import absolute_import
 
 import linecache
 import os
-import platform
 import sys
 from dataclasses import dataclass, field
 from traceback import walk_tb
@@ -39,7 +38,7 @@ from .syntax import Syntax
 from .text import Text
 from .theme import Theme
 
-WINDOWS = platform.system() == "Windows"
+WINDOWS = sys.platform == "win32"
 
 LOCALS_MAX_LENGTH = 10
 LOCALS_MAX_STRING = 80