We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
Release 1.4.8
User facing issues on the docket:
+ non-zip_safe pex extraction has a race on renaming #557
+ Execute pex archive at runtime with -m parameter #547
+ OSX's python 2.7.10 interpreter reports a bad local platform, bdists fail to resolve #523 
+ `pex.resolver.resolve` does the wrong thing when given an `interpreter` and no `platform` #511
+ [Errno 13] Permission denied when executing with bdist_pex #570


--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
--- BEGIN FILES ---
Path: `pex/version.py`
Content:
```
1 # Copyright 2015 Pants project contributors (see CONTRIBUTORS.md).
2 # Licensed under the Apache License, Version 2.0 (see LICENSE).
3 
4 __version__ = '1.4.7'
5 
6 # Versions 34.0.0 through 35.0.2 (last pre-36.0.0) de-vendored dependencies which causes problems
7 # for pex code so we exclude that range.
8 SETUPTOOLS_REQUIREMENT = 'setuptools>=20.3,<41,!=34.*,!=35.*'
9 
10 WHEEL_REQUIREMENT = 'wheel>=0.26.0,<0.32'
11
```
--- END FILES ---

Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.

Here is an example:

```diff
diff --git a/examples/server_async.py b/examples/server_async.py
--- a/examples/server_async.py
+++ b/examples/server_async.py
@@ -313,4 +313,4 @@
 
 
 if __name__ == "__main__":
-    asyncio.run(run_async_server("."), debug=True)
+    asyncio.run(run_async_server(), debug=True)
diff --git a/examples/server_sync.py b/examples/server_sync.py
--- a/examples/server_sync.py
+++ b/examples/server_sync.py
@@ -313,5 +313,5 @@
 
 
 if __name__ == "__main__":
-    server = run_sync_server(".")
+    server = run_sync_server()
     server.shutdown()

```

diff --git a/pex/version.py b/pex/version.py
--- a/pex/version.py
+++ b/pex/version.py
@@ -1,7 +1,7 @@
 # Copyright 2015 Pants project contributors (see CONTRIBUTORS.md).
 # Licensed under the Apache License, Version 2.0 (see LICENSE).
 
-__version__ = '1.4.7'
+__version__ = '1.4.8'
 
 # Versions 34.0.0 through 35.0.2 (last pre-36.0.0) de-vendored dependencies which causes problems
 # for pex code so we exclude that range.

{"golden_diff": "diff --git a/pex/version.py b/pex/version.py\n--- a/pex/version.py\n+++ b/pex/version.py\n@@ -1,7 +1,7 @@\n # Copyright 2015 Pants project contributors (see CONTRIBUTORS.md).\n # Licensed under the Apache License, Version 2.0 (see LICENSE).\n \n-__version__ = '1.4.7'\n+__version__ = '1.4.8'\n \n # Versions 34.0.0 through 35.0.2 (last pre-36.0.0) de-vendored dependencies which causes problems\n # for pex code so we exclude that range.\n", "issue": "Release 1.4.8\nUser facing issues on the docket:\r\n+ non-zip_safe pex extraction has a race on renaming #557\r\n+ Execute pex archive at runtime with -m parameter #547\r\n+ OSX's python 2.7.10 interpreter reports a bad local platform, bdists fail to resolve #523 \r\n+ `pex.resolver.resolve` does the wrong thing when given an `interpreter` and no `platform` #511\r\n+ [Errno 13] Permission denied when executing with bdist_pex #570\r\n\n", "before_files": [{"content": "# Copyright 2015 Pants project contributors (see CONTRIBUTORS.md).\n# Licensed under the Apache License, Version 2.0 (see LICENSE).\n\n__version__ = '1.4.7'\n\n# Versions 34.0.0 through 35.0.2 (last pre-36.0.0) de-vendored dependencies which causes problems\n# for pex code so we exclude that range.\nSETUPTOOLS_REQUIREMENT = 'setuptools>=20.3,<41,!=34.*,!=35.*'\n\nWHEEL_REQUIREMENT = 'wheel>=0.26.0,<0.32'\n", "path": "pex/version.py"}], "after_files": [{"content": "# Copyright 2015 Pants project contributors (see CONTRIBUTORS.md).\n# Licensed under the Apache License, Version 2.0 (see LICENSE).\n\n__version__ = '1.4.8'\n\n# Versions 34.0.0 through 35.0.2 (last pre-36.0.0) de-vendored dependencies which causes problems\n# for pex code so we exclude that range.\nSETUPTOOLS_REQUIREMENT = 'setuptools>=20.3,<41,!=34.*,!=35.*'\n\nWHEEL_REQUIREMENT = 'wheel>=0.26.0,<0.32'\n", "path": "pex/version.py"}]}