01-pip-no-mmap.patch

--- native/src/pip/_vendor/cachecontrol/filewrapper.py	2022-11-30 22:08:59
+++ wasm/src/pip/_vendor/cachecontrol/filewrapper.py	2022-11-30 22:10:05
@@ -69,6 +69,10 @@
                 # relying on Python's buffer API and mmap(). mmap() just gives
                 # a view directly into the filesystem's memory cache, so it
                 # doesn't result in duplicate memory use.
+
+                # CoWasm: Temporary hack to avoid using mmap.
+                return self.__buf.read()
+
                 self.__buf.seek(0, 0)
                 result = memoryview(
                     mmap.mmap(self.__buf.fileno(), 0, access=mmap.ACCESS_READ)