Read me fix

Author: pokey

README.md

@@ -38,6 +38,7 @@ from processes running on the same host as VSCode.
 ### Python example
 
 ```py
+import json
 import requests
 from pathlib import Path
 from tempfile import gettempdir
@@ -67,39 +68,45 @@ that you have a function `actions.key` that presses the given key (eg
 [talon](https://talonvoice.com/)):
 
 ```py
-    port_file_path = Path(gettempdir()) / "vscode-port"
-    original_contents = port_file_path.read_text()
-
-    # Issue command to VSCode telling it to update the port file.  Because only
-    # the active VSCode instance will accept keypresses, we can be sure that
-    # the active VSCode instance will be the one to write the port.
-    if is_mac:
-        actions.key("cmd-shift-alt-p")
-    else:
-        actions.key("ctrl-shift-alt-p")
-
-    # Wait for the VSCode instance to update the port file.  This generally
-    # happens within the first millisecond, but we give it 3 seconds just in
-    # case.
-    start_time = time.monotonic()
+import json
+import requests
+import time
+from pathlib import Path
+from tempfile import gettempdir
+
+port_file_path = Path(gettempdir()) / "vscode-port"
+original_contents = port_file_path.read_text()
+
+# Issue command to VSCode telling it to update the port file.  Because only
+# the active VSCode instance will accept keypresses, we can be sure that
+# the active VSCode instance will be the one to write the port.
+if is_mac:
+    actions.key("cmd-shift-alt-p")
+else:
+    actions.key("ctrl-shift-alt-p")
+
+# Wait for the VSCode instance to update the port file.  This generally
+# happens within the first millisecond, but we give it 3 seconds just in
+# case.
+start_time = time.monotonic()
+new_contents = port_file_path.read_text()
+while original_contents == new_contents:
+    time.sleep(0.001)
+    if time.monotonic() - start_time > 3.0:
+        raise Exception("Timed out waiting for VSCode to update port file")
     new_contents = port_file_path.read_text()
-    while original_contents == new_contents:
-        time.sleep(0.001)
-        if time.monotonic() - start_time > 3.0:
-            raise Exception("Timed out waiting for VSCode to update port file")
-        new_contents = port_file_path.read_text()
-
-    port = json.loads(new_contents)["port"]
-
-    response = requests.post(
-        f"http://localhost:{port}/execute-command",
-        json={
-            "commandId": "some-command-id",
-            "args": ["some-argument"],
-        },
-        timeout=(0.05, 3.05),
-    )
-    response.raise_for_status()
+
+port = json.loads(new_contents)["port"]
+
+response = requests.post(
+    f"http://localhost:{port}/execute-command",
+    json={
+        "commandId": "some-command-id",
+        "args": ["some-argument"],
+    },
+    timeout=(0.05, 3.05),
+)
+response.raise_for_status()
 ```
 
 ## Known issues