I got an error about 'could not find a matching loader for the scheme' when I want to run my Pyramid web app in PyCharm based on Pyramid server. However, if I directly run pserve myapp.ini in terminal, it can launch my web app locally. I have edit the configuration in PyCharm: the config file is pointed to myapp.ini and the Python interpreter is pointed to python in the virtual environment.
Traceback (most recent call last): File "/Applications/PyCharm.app/Contents/plugins/python/helpers/pycharm/pycharm_load_entry_point.py", line 12, in sys.exit(f()) File "/Users/simon/Documents/venv/lib/python3.6/site-packages/pyramid/scripts/pserve.py", line 34, in main return command.run() File "/Users/simon/Documents/venv/lib/python3.6/site-packages/pyramid/scripts/pserve.py", line 193, in run loader = self._get_config_loader(config_uri) File "/Users/simon/Documents/venv/lib/python3.6/site-packages/pyramid/scripts/common.py", line 23, in get_config_loader return plaster.get_loader(config_uri, protocols=['wsgi']) File "/Users/simon/Documents/venv/lib/python3.6/site-packages/plaster/loaders.py", line 109, in get_loader raise LoaderNotFound(requested_scheme, protocols=protocols) plaster.exceptions.LoaderNotFound: Could not find a matching loader for the scheme "file+ini ", protocol "wsgi".
Process finished with exit code 1
Though I go to the official website about plaster and WSGI, I still cannot figure it out.
Do anyone have any suggestion or have any similar problem when configuring Pyramid web app in PyCharm?
Thanks.
Ensure that you have entered all the required values in a Run/Debug Configuration.
https://www.jetbrains.com/help/pycharm/run-debug-configuration.html#create-permanent
Create a run/debug configuration from a template
Open the Run/Debug Configuration dialog in one of the following ways:
Select Run | Edit Configurations from the main menu.
With the Navigation bar visible (View | Appearance | Navigation Bar), choose Edit Configurations from the run/debug configuration selector.
Press
⌃⌥R
and then press0
.In the Run/Debug Configuration dialog, click + on the toolbar or press
⌘N
. The list shows the run/debug configuration templates.Select the desired template. If you are not sure which template to choose, refer to Run/debug configurations dialog for more information on particular templates.
Specify the run/debug configuration name in the Name field. This name will be shown in the list of the available run/debug configurations.
[Omitted]
Set the run/debug configuration parameters.
The required parameters for a Pyramid project*
include Name, Config file, Project, Python interpreter, and Working directory. You needed to add Working directory.
*
I don't know why they call it a "Pyramid server". Pyramid is a web framework, not a server. Waitress and Werkzeug are servers.