chore: write env file

substra_launcher.py

@@ -7,6 +7,12 @@ async def launch_substra_space(
 ) -> RepoUrl:
     repo_id = "owkin/trainer-" + repo_id
 
+    
+    ENV_FILE = f"SUBSTRA_ORG1_DISTR={hospital_a / 100} \nSUBSTRA_ORG2_DISTR={hospital_b / 100}"
+
+    with open("substra_template/.env", 'w') as f:
+        f.write(ENV_FILE)
+        
     repo_url = hf_api.create_repo(
         repo_id=repo_id,
         repo_type="space",
@@ -19,16 +25,4 @@ async def launch_substra_space(
         folder_path="./substra_template/"
     )
 
-    ENV_FILE = f"""\
-SUBSTRA_ORG1_DISTR={hospital_a / 100}
-SUBSTRA_ORG2_DISTR={hospital_b / 100}\
-"""
-
-    hf_api.upload_file(
-        repo_id=repo_id,
-        path_or_fileobj=DOCKER_FILE.encode(),
-        path_in_repo=".env",
-        repo_type="space",
-    )
-
     return repo_url