We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
include version information in error log
would be useful to include things like:

- pre-commit version
- sys.version
- sys.executable

--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
--- BEGIN FILES ---
Path: `pre_commit/error_handler.py`
Content:
```
1 from __future__ import absolute_import
2 from __future__ import print_function
3 from __future__ import unicode_literals
4 
5 import contextlib
6 import os.path
7 import traceback
8 
9 import six
10 
11 from pre_commit import five
12 from pre_commit import output
13 from pre_commit.store import Store
14 
15 
16 class FatalError(RuntimeError):
17     pass
18 
19 
20 def _to_bytes(exc):
21     try:
22         return bytes(exc)
23     except Exception:
24         return six.text_type(exc).encode('UTF-8')
25 
26 
27 def _log_and_exit(msg, exc, formatted):
28     error_msg = b''.join((
29         five.to_bytes(msg), b': ',
30         five.to_bytes(type(exc).__name__), b': ',
31         _to_bytes(exc), b'\n',
32     ))
33     output.write(error_msg)
34     store = Store()
35     log_path = os.path.join(store.directory, 'pre-commit.log')
36     output.write_line('Check the log at {}'.format(log_path))
37     with open(log_path, 'wb') as log:
38         output.write(error_msg, stream=log)
39         output.write_line(formatted, stream=log)
40     raise SystemExit(1)
41 
42 
43 @contextlib.contextmanager
44 def error_handler():
45     try:
46         yield
47     except (Exception, KeyboardInterrupt) as e:
48         if isinstance(e, FatalError):
49             msg = 'An error has occurred'
50         elif isinstance(e, KeyboardInterrupt):
51             msg = 'Interrupted (^C)'
52         else:
53             msg = 'An unexpected error has occurred'
54         _log_and_exit(msg, e, traceback.format_exc())
55
```
--- 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/pre_commit/error_handler.py b/pre_commit/error_handler.py
--- a/pre_commit/error_handler.py
+++ b/pre_commit/error_handler.py
@@ -4,10 +4,12 @@
 
 import contextlib
 import os.path
+import sys
 import traceback
 
 import six
 
+import pre_commit.constants as C
 from pre_commit import five
 from pre_commit import output
 from pre_commit.store import Store
@@ -34,9 +36,36 @@
     store = Store()
     log_path = os.path.join(store.directory, 'pre-commit.log')
     output.write_line('Check the log at {}'.format(log_path))
+
     with open(log_path, 'wb') as log:
+        output.write_line(
+            '### version information\n```', stream=log,
+        )
+        output.write_line(
+            'pre-commit.version: {}'.format(C.VERSION), stream=log,
+        )
+        output.write_line(
+            'sys.version:\n{}'.format(
+                '\n'.join(
+                    [
+                        '    {}'.format(line)
+                        for line in sys.version.splitlines()
+                    ],
+                ),
+            ),
+            stream=log,
+        )
+        output.write_line(
+            'sys.executable: {}'.format(sys.executable), stream=log,
+        )
+        output.write_line('os.name: {}'.format(os.name), stream=log)
+        output.write_line(
+            'sys.platform: {}\n```'.format(sys.platform), stream=log,
+        )
+        output.write_line('### error information\n```', stream=log)
         output.write(error_msg, stream=log)
         output.write_line(formatted, stream=log)
+        output.write('\n```\n', stream=log)
     raise SystemExit(1)

{"golden_diff": "diff --git a/pre_commit/error_handler.py b/pre_commit/error_handler.py\n--- a/pre_commit/error_handler.py\n+++ b/pre_commit/error_handler.py\n@@ -4,10 +4,12 @@\n \n import contextlib\n import os.path\n+import sys\n import traceback\n \n import six\n \n+import pre_commit.constants as C\n from pre_commit import five\n from pre_commit import output\n from pre_commit.store import Store\n@@ -34,9 +36,36 @@\n     store = Store()\n     log_path = os.path.join(store.directory, 'pre-commit.log')\n     output.write_line('Check the log at {}'.format(log_path))\n+\n     with open(log_path, 'wb') as log:\n+        output.write_line(\n+            '### version information\\n```', stream=log,\n+        )\n+        output.write_line(\n+            'pre-commit.version: {}'.format(C.VERSION), stream=log,\n+        )\n+        output.write_line(\n+            'sys.version:\\n{}'.format(\n+                '\\n'.join(\n+                    [\n+                        '    {}'.format(line)\n+                        for line in sys.version.splitlines()\n+                    ],\n+                ),\n+            ),\n+            stream=log,\n+        )\n+        output.write_line(\n+            'sys.executable: {}'.format(sys.executable), stream=log,\n+        )\n+        output.write_line('os.name: {}'.format(os.name), stream=log)\n+        output.write_line(\n+            'sys.platform: {}\\n```'.format(sys.platform), stream=log,\n+        )\n+        output.write_line('### error information\\n```', stream=log)\n         output.write(error_msg, stream=log)\n         output.write_line(formatted, stream=log)\n+        output.write('\\n```\\n', stream=log)\n     raise SystemExit(1)\n", "issue": "include version information in error log\nwould be useful to include things like:\r\n\r\n- pre-commit version\r\n- sys.version\r\n- sys.executable\n", "before_files": [{"content": "from __future__ import absolute_import\nfrom __future__ import print_function\nfrom __future__ import unicode_literals\n\nimport contextlib\nimport os.path\nimport traceback\n\nimport six\n\nfrom pre_commit import five\nfrom pre_commit import output\nfrom pre_commit.store import Store\n\n\nclass FatalError(RuntimeError):\n    pass\n\n\ndef _to_bytes(exc):\n    try:\n        return bytes(exc)\n    except Exception:\n        return six.text_type(exc).encode('UTF-8')\n\n\ndef _log_and_exit(msg, exc, formatted):\n    error_msg = b''.join((\n        five.to_bytes(msg), b': ',\n        five.to_bytes(type(exc).__name__), b': ',\n        _to_bytes(exc), b'\\n',\n    ))\n    output.write(error_msg)\n    store = Store()\n    log_path = os.path.join(store.directory, 'pre-commit.log')\n    output.write_line('Check the log at {}'.format(log_path))\n    with open(log_path, 'wb') as log:\n        output.write(error_msg, stream=log)\n        output.write_line(formatted, stream=log)\n    raise SystemExit(1)\n\n\n@contextlib.contextmanager\ndef error_handler():\n    try:\n        yield\n    except (Exception, KeyboardInterrupt) as e:\n        if isinstance(e, FatalError):\n            msg = 'An error has occurred'\n        elif isinstance(e, KeyboardInterrupt):\n            msg = 'Interrupted (^C)'\n        else:\n            msg = 'An unexpected error has occurred'\n        _log_and_exit(msg, e, traceback.format_exc())\n", "path": "pre_commit/error_handler.py"}], "after_files": [{"content": "from __future__ import absolute_import\nfrom __future__ import print_function\nfrom __future__ import unicode_literals\n\nimport contextlib\nimport os.path\nimport sys\nimport traceback\n\nimport six\n\nimport pre_commit.constants as C\nfrom pre_commit import five\nfrom pre_commit import output\nfrom pre_commit.store import Store\n\n\nclass FatalError(RuntimeError):\n    pass\n\n\ndef _to_bytes(exc):\n    try:\n        return bytes(exc)\n    except Exception:\n        return six.text_type(exc).encode('UTF-8')\n\n\ndef _log_and_exit(msg, exc, formatted):\n    error_msg = b''.join((\n        five.to_bytes(msg), b': ',\n        five.to_bytes(type(exc).__name__), b': ',\n        _to_bytes(exc), b'\\n',\n    ))\n    output.write(error_msg)\n    store = Store()\n    log_path = os.path.join(store.directory, 'pre-commit.log')\n    output.write_line('Check the log at {}'.format(log_path))\n\n    with open(log_path, 'wb') as log:\n        output.write_line(\n            '### version information\\n```', stream=log,\n        )\n        output.write_line(\n            'pre-commit.version: {}'.format(C.VERSION), stream=log,\n        )\n        output.write_line(\n            'sys.version:\\n{}'.format(\n                '\\n'.join(\n                    [\n                        '    {}'.format(line)\n                        for line in sys.version.splitlines()\n                    ],\n                ),\n            ),\n            stream=log,\n        )\n        output.write_line(\n            'sys.executable: {}'.format(sys.executable), stream=log,\n        )\n        output.write_line('os.name: {}'.format(os.name), stream=log)\n        output.write_line(\n            'sys.platform: {}\\n```'.format(sys.platform), stream=log,\n        )\n        output.write_line('### error information\\n```', stream=log)\n        output.write(error_msg, stream=log)\n        output.write_line(formatted, stream=log)\n        output.write('\\n```\\n', stream=log)\n    raise SystemExit(1)\n\n\n@contextlib.contextmanager\ndef error_handler():\n    try:\n        yield\n    except (Exception, KeyboardInterrupt) as e:\n        if isinstance(e, FatalError):\n            msg = 'An error has occurred'\n        elif isinstance(e, KeyboardInterrupt):\n            msg = 'Interrupted (^C)'\n        else:\n            msg = 'An unexpected error has occurred'\n        _log_and_exit(msg, e, traceback.format_exc())\n", "path": "pre_commit/error_handler.py"}]}