a

app/helper.py

@@ -87,7 +87,8 @@ class VirtualenvOperation(object):
         if package_name:
             command = f"pip install {package_name}"
         else:
-            subprocess.check_output("pipenv run pip freeze > requirements.txt".split(), cwd=path)
+            with open(os.path.join(path, "requirements.txt"), "w") as f:
+                subprocess.check_output("pipenv run pip freeze".split(), cwd=path, stdout=f)
             command = f"pip install -r requirements.txt"
         try:
             output = subprocess.check_output(command.split(), cwd=path)