fix win tests

Author: blink1073

.evergreen/config.yml

@@ -2761,7 +2761,7 @@ buildvariants:
     AUTH: auth
     SSL: ssl
     TEST_SUITES: default
-    PYTHON_BINARY: C:/python/Python 39/python.exe
+    PYTHON_BINARY: C:/python/Python39/python.exe
 - name: test-win64-py-3.9-auth-ssl-async
   tasks:
     - name: .sharded_cluster
@@ -2772,7 +2772,7 @@ buildvariants:
     AUTH: auth
     SSL: ssl
     TEST_SUITES: default_async
-    PYTHON_BINARY: C:/python/Python 39/python.exe
+    PYTHON_BINARY: C:/python/Python39/python.exe
 - name: test-win64-py-3.9-noauth-nossl-sync
   tasks:
     - name: .sharded_cluster
@@ -2783,7 +2783,7 @@ buildvariants:
     AUTH: noauth
     SSL: nossl
     TEST_SUITES: default
-    PYTHON_BINARY: C:/python/Python 39/python.exe
+    PYTHON_BINARY: C:/python/Python39/python.exe
 - name: test-win64-py-3.9-noauth-nossl-async
   tasks:
     - name: .sharded_cluster
@@ -2794,7 +2794,7 @@ buildvariants:
     AUTH: noauth
     SSL: nossl
     TEST_SUITES: default_async
-    PYTHON_BINARY: C:/python/Python 39/python.exe
+    PYTHON_BINARY: C:/python/Python39/python.exe
 - name: test-win64-py-3.13-auth-ssl-sync
   tasks:
     - name: .sharded_cluster
@@ -2805,7 +2805,7 @@ buildvariants:
     AUTH: auth
     SSL: ssl
     TEST_SUITES: default
-    PYTHON_BINARY: C:/python/Python 313/python.exe
+    PYTHON_BINARY: C:/python/Python313/python.exe
 - name: test-win64-py-3.13-auth-ssl-async
   tasks:
     - name: .sharded_cluster
@@ -2816,7 +2816,7 @@ buildvariants:
     AUTH: auth
     SSL: ssl
     TEST_SUITES: default_async
-    PYTHON_BINARY: C:/python/Python 313/python.exe
+    PYTHON_BINARY: C:/python/Python313/python.exe
 - name: test-win64-py-3.13-noauth-nossl-sync
   tasks:
     - name: .sharded_cluster
@@ -2827,7 +2827,7 @@ buildvariants:
     AUTH: noauth
     SSL: nossl
     TEST_SUITES: default
-    PYTHON_BINARY: C:/python/Python 313/python.exe
+    PYTHON_BINARY: C:/python/Python313/python.exe
 - name: test-win64-py-3.13-noauth-nossl-async
   tasks:
     - name: .sharded_cluster
@@ -2838,7 +2838,7 @@ buildvariants:
     AUTH: noauth
     SSL: nossl
     TEST_SUITES: default_async
-    PYTHON_BINARY: C:/python/Python 313/python.exe
+    PYTHON_BINARY: C:/python/Python313/python.exe
 
 # Server tests for Windows (32-bit).
 - name: test-win64-32-bit-py3.9-auth-ssl-sync

.evergreen/scripts/generate_config.py

@@ -217,7 +217,7 @@ def create_server_variants() -> list[BuildVariant]:
     for prefix, base, (auth, ssl), sync in product(
         ["", "32-bit "], MIN_MAX_PYTHON, AUTH_SSLS, SYNCS
     ):
-        python = f"{prefix} {base}"
+        python = f"{prefix}{base}"
         test_suite = "default" if sync == "sync" else "default_async"
         expansions = dict(AUTH=auth, SSL=ssl, TEST_SUITES=test_suite)
         display_name = get_display_name("Test", host, python=python, **expansions)