Improve PyPy and Windows support (#130)

* Improve PyPy and Windows support

* Use platform-appropriate defaults in uvicorn.run

* Explicit encoding when using 'open' in setup.py

* Version 0.2.13

* Fix to setup.py

setup.py

@@ -4,6 +4,7 @@
 import os
 import re
 import sys
+import platform
 
 from setuptools import setup
 
@@ -12,15 +13,16 @@ def get_version(package):
     """
     Return package version as listed in `__version__` in `init.py`.
     """
-    init_py = open(os.path.join(package, '__init__.py')).read()
+    path = os.path.join(package, '__init__.py')
+    init_py = open(path, 'r', encoding='utf8').read()
     return re.search("__version__ = ['\"]([^'\"]+)['\"]", init_py).group(1)
 
 
 def get_long_description():
     """
     Return the README.
     """
-    return open('README.md', 'r').read()
+    return open('README.md', 'r', encoding='utf8').read()
 
 
 def get_packages(package):
@@ -32,6 +34,28 @@ def get_packages(package):
             if os.path.exists(os.path.join(dirpath, '__init__.py'))]
 
 
+if platform.python_implementation() == 'PyPy':
+    requirements = [
+        'click',
+        'h11',
+        'websockets>=6.0'
+    ]
+elif platform.system() == 'Windows' or platform.system().startswith('CYGWIN'):
+    requirements = [
+        'click',
+        'h11',
+        'websockets>=6.0'
+    ]
+else:
+    requirements = [
+        'click',
+        'h11',
+        'httptools',
+        'uvloop',
+        'websockets>=6.0'
+    ]
+
+
 setup(
     name='uvicorn',
     version=get_version('uvicorn'),
@@ -43,13 +67,7 @@ def get_packages(package):
     author='Tom Christie',
     author_email='[email protected]',
     packages=get_packages('uvicorn'),
-    install_requires=[
-        'click',
-        'h11',
-        'httptools',
-        'uvloop',
-        'websockets>=6.0'
-    ],
+    install_requires=requirements,
     classifiers=[
         'Development Status :: 3 - Alpha',
         'Environment :: Web Environment',

uvicorn/__init__.py

@@ -1,4 +1,4 @@
 from uvicorn.main import main, run
 
-__version__ = "0.2.12"
+__version__ = "0.2.13"
 __all__ = ["main", "run"]

uvicorn/main.py

@@ -6,6 +6,7 @@
 import signal
 import os
 import logging
+import platform
 import sys
 
 
@@ -22,12 +23,23 @@
 HTTP_PROTOCOLS = {"h11": H11Protocol, "httptools": HttpToolsProtocol}
 
 
+if platform.python_implementation() == 'PyPy':
+    DEFAULT_LOOP = 'asyncio'
+    DEFAULT_PARSER = 'h11'
+elif platform.system() == 'Windows' or platform.system().startswith('CYGWIN'):
+    DEFAULT_LOOP = 'asyncio'
+    DEFAULT_PARSER = 'h11'
+else:
+    DEFAULT_LOOP = 'uvloop'
+    DEFAULT_PARSER = 'httptools'
+
+
 @click.command()
 @click.argument("app")
 @click.option("--host", type=str, default="127.0.0.1", help="Host")
 @click.option("--port", type=int, default=8000, help="Port")
-@click.option("--loop", type=LOOP_CHOICES, default="uvloop", help="Event loop")
-@click.option("--http", type=HTTP_CHOICES, default="httptools", help="HTTP Handler")
+@click.option("--loop", type=LOOP_CHOICES, default=DEFAULT_LOOP, help="Event loop")
+@click.option("--http", type=HTTP_CHOICES, default=DEFAULT_PARSER, help="HTTP Handler")
 @click.option("--workers", type=int, default=1, help="Number of worker processes")
 @click.option("--log-level", type=LEVEL_CHOICES, default="info", help="Log level")
 def main(app, host: str, port: int, loop: str, http: str, workers: int, log_level: str):
@@ -54,9 +66,9 @@ def run(app, host="127.0.0.1", port=8000, log_level="info"):
     log_level = LOG_LEVELS[log_level]
     logging.basicConfig(format="%(levelname)s: %(message)s", level=log_level)
 
-    loop = get_event_loop("uvloop")
+    loop = get_event_loop(DEFAULT_LOOP)
     logger = logging.getLogger()
-    protocol_class = HttpToolsProtocol
+    protocol_class = {'httptools': HttpToolsProtocol, 'h11': H11Protocol}[DEFAULT_PARSER]
 
     server = Server(app, host, port, loop, logger, protocol_class)
     server.run()
@@ -142,7 +154,11 @@ def run(self):
             self.loop.run_forever()
 
     def handle_exit(self, sig, frame):
-        self.logger.warning("Received signal {}. Shutting down.".format(sig.name))
+        if hasattr(sig, 'name'):
+            msg = "Received signal %s. Shutting down." % sig.name
+        else:
+            msg = "Received signal. Shutting down."
+        self.logger.warning(msg)
         self.should_exit = True
 
     def create_protocol(self):