diff -uNr pypy3.7-v7.3.7-src/lib-python/3/aifc.py pypy3.7-v7.3.7-src.mod/lib-python/3/aifc.py
--- pypy3.7-v7.3.7-src/lib-python/3/aifc.py     2021-10-24 22:07:11.000000000 +0800
+++ pypy3.7-v7.3.7-src.mod/lib-python/3/aifc.py 2022-01-17 23:55:55.258202300 +0800
@@ -928,7 +928,7 @@
 if __name__ == '__main__':
     import sys
     if not sys.argv[1:]:
-        sys.argv.append('/usr/demos/data/audio/bach.aiff')
+        sys.argv.append('@TERMUX_PREFIX@/demos/data/audio/bach.aiff')
     fn = sys.argv[1]
     with open(fn, 'r') as f:
         print("Reading", fn)

diff -uNr pypy3.7-v7.3.7-src/lib-python/3/mailcap.py pypy3.7-v7.3.7-src.mod/lib-python/3/mailcap.py
--- pypy3.7-v7.3.7-src/lib-python/3/mailcap.py          2021-10-24 22:07:11.000000000 +0800
+++ pypy3.7-v7.3.7-src.mod/lib-python/3/mailcap.py      2022-01-17 23:59:02.757448900 +0800
@@ -55,7 +55,8 @@
             # Don't bother with getpwuid()
             home = '.' # Last resort
         mailcaps = [home + '/.mailcap', '/etc/mailcap',
-                '/usr/etc/mailcap', '/usr/local/etc/mailcap']
+                '/usr/etc/mailcap', '/usr/local/etc/mailcap',
+                '@TERMUX_PREFIX@/etc/mailcap']
     return mailcaps



diff -uNr pypy3.7-v7.3.7-src/lib-python/3/mimetypes.py pypy3.7-v7.3.7-src.mod/lib-python/3/mimetypes.py
--- pypy3.7-v7.3.7-src/lib-python/3/mimetypes.py        2021-10-24 22:07:11.000000000 +0800
+++ pypy3.7-v7.3.7-src.mod/lib-python/3/mimetypes.py    2022-01-18 00:02:08.526252600 +0800
@@ -49,6 +49,7 @@
     "/usr/local/lib/netscape/mime.types",
     "/usr/local/etc/httpd/conf/mime.types",     # Apache 1.2
     "/usr/local/etc/mime.types",                # Apache 1.3
+    "@TERMUX_PREFIX@/etc/mime.types",           # Termux
     ]

 inited = False

diff -uNr pypy3.7-v7.3.7-src/lib-python/3/subprocess.py pypy3.7-v7.3.7-src.mod/lib-python/3/subprocess.py
--- pypy3.7-v7.3.7-src/lib-python/3/subprocess.py       2021-10-24 22:07:11.000000000 +0800
+++ pypy3.7-v7.3.7-src.mod/lib-python/3/subprocess.py   2022-01-17 22:27:32.546765900 +0800
@@ -1452,9 +1452,7 @@
                 args = list(args)

             if shell:
-                # On Android the default shell is at '/system/bin/sh'.
-                unix_shell = ('/system/bin/sh' if
-                          hasattr(sys, 'getandroidapilevel') else '/bin/sh')
+                unix_shell = ('@TERMUX_PREFIX@/bin/sh')
                 args = [unix_shell, "-c"] + args
                 if executable:
                     args[0] = executable

diff -uNr pypy3.7-v7.3.7-src/lib-python/3/tempfile.py pypy3.7-v7.3.7-src.mod/lib-python/3/tempfile.py
--- pypy3.7-v7.3.7-src/lib-python/3/tempfile.py         2021-10-24 22:07:11.000000000 +0800
+++ pypy3.7-v7.3.7-src.mod/lib-python/3/tempfile.py     2022-01-17 22:43:01.156251700 +0800
@@ -173,7 +173,7 @@
                          _os.path.expandvars(r'%SYSTEMROOT%\Temp'),
                          r'c:\temp', r'c:\tmp', r'\temp', r'\tmp' ])
     else:
-        dirlist.extend([ '/tmp', '/var/tmp', '/usr/tmp' ])
+        dirlist.extend([ '@TERMUX_PREFIX@/tmp' ])

     # As a last resort, the current directory.
     try:

diff -uNr pypy3.7-v7.3.7-src/lib-python/3/uuid.py pypy3.7-v7.3.7-src.mod/lib-python/3/uuid.py
--- pypy3.7-v7.3.7-src/lib-python/3/uuid.py     2021-10-24 22:07:11.000000000 +0800
+++ pypy3.7-v7.3.7-src.mod/lib-python/3/uuid.py 2022-01-18 00:07:51.455919700 +0800
@@ -362,7 +362,7 @@
     import os, shutil, subprocess
     executable = shutil.which(command)
     if executable is None:
-        path = os.pathsep.join(('/sbin', '/usr/sbin'))
+        path = os.pathsep.join(('@TERMUX_PREFIX@/bin',))
         executable = shutil.which(command, path=path)
         if executable is None:
             return None

diff -uNr pypy3.7-v7.3.7-src/lib-python/3/posixpath.py pypy3.7-v7.3.7-src.mod/lib-python/3/posixpath.py
--- pypy3.7-v7.3.7-src/lib-python/3/posixpath.py        2021-10-24 22:07:11.000000000 +0800
+++ pypy3.7-v7.3.7-src.mod/lib-python/3/posixpath.py    2022-01-18 00:05:03.938325200 +0800
@@ -18,7 +18,7 @@
 extsep = '.'
 sep = '/'
 pathsep = ':'
-defpath = '/bin:/usr/bin'
+defpath = ':@TERMUX_PREFIX@/bin'
 altsep = None
 devnull = '/dev/null'

diff -uNr pypy3.8-v7.3.8-src/lib-python/3/multiprocessing/heap.py pypy3.8-v7.3.8-src.mod/lib-python/3/multiprocessing/heap.py
--- pypy3.8-v7.3.8-src/lib-python/3/multiprocessing/heap.py     2022-03-17 19:52:44.711182400 +0800
+++ pypy3.8-v7.3.8-src.mod/lib-python/3/multiprocessing/heap.py 2022-03-20 11:42:23.287141000 +0800
@@ -70,7 +70,7 @@
         """
 
         if sys.platform == 'linux':
-            _dir_candidates = ['/dev/shm']
+            _dir_candidates = []
         else:
             _dir_candidates = []