Cannot create new project!

[mikeckennedy]

Hi guys,

I don't know how the system worked its way into this state, but it seems you cannot create a new project, and run it, from this template.

Try these steps:

1. mkdir web_proj
2. cd web_proj
3. python3 -m venv --copies .env
4. . ./.env/bin/activate
5. pip install cookiecutter
6. cookiecutter https://github.com/Pylons/pyramid-cookiecutter-starter branch=1.9-branch (branch is optional, also fails on latest)
7. Choose defaults (2 for template)
8. cd pyramid_scaffold
9. python setup.py develop
10. pserve development.ini

Error:

... 
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/configparser.py", line 394, in before_get
    self._interpolate_some(parser, option, L, value, section, defaults, 1)
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/configparser.py", line 444, in _interpolate_some
    "found: %r" % (rest,))
configparser.InterpolationSyntaxError: Error in file development.ini: '%' must be followed by '%' or '(', found: '%{$fg[cyan]%}%c%{$reset_color%} $(git_prompt_info)'

Any ideas what broke? Did I somehow do something wrong?

Thanks, Michael

[mikeckennedy]

Here is the full traceback:

pserve development.ini 
Traceback (most recent call last):
  File "/Users/screencaster/Desktop/why/.env/bin/pserve", line 11, in <module>
    load_entry_point('pyramid', 'console_scripts', 'pserve')()
  File "/Users/screencaster/Desktop/why/.env/lib/python3.6/site-packages/pyramid-1.9-py3.6.egg/pyramid/scripts/pserve.py", line 32, in main
    return command.run()
  File "/Users/screencaster/Desktop/why/.env/lib/python3.6/site-packages/pyramid-1.9-py3.6.egg/pyramid/scripts/pserve.py", line 170, in run
    self.pserve_file_config(loader, global_conf=config_vars)
  File "/Users/screencaster/Desktop/why/.env/lib/python3.6/site-packages/pyramid-1.9-py3.6.egg/pyramid/scripts/pserve.py", line 133, in pserve_file_config
    settings = loader.get_settings('pserve', global_conf)
  File "/Users/screencaster/Desktop/why/.env/lib/python3.6/site-packages/plaster_pastedeploy-0.4-py3.6.egg/plaster_pastedeploy/__init__.py", line 80, in get_settings
    defaults = parser.defaults()
  File "/Users/screencaster/Desktop/why/.env/lib/python3.6/site-packages/PasteDeploy-1.5.2-py3.6.egg/paste/deploy/loadwsgi.py", line 68, in defaults
    defaults[key] = self.get('DEFAULT', key) or val
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/configparser.py", line 800, in get
    d)
  File "/Users/screencaster/Desktop/why/.env/lib/python3.6/site-packages/PasteDeploy-1.5.2-py3.6.egg/paste/deploy/loadwsgi.py", line 95, in before_get
    value, defaults)
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/configparser.py", line 394, in before_get
    self._interpolate_some(parser, option, L, value, section, defaults, 1)
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/configparser.py", line 444, in _interpolate_some
    "found: %r" % (rest,))
configparser.InterpolationSyntaxError: Error in file development.ini: '%' must be followed by '%' or '(', found: '%{$fg[cyan]%}%c%{$reset_color%} $(git_prompt_info)'

[mikeckennedy]

OK, looks like this is an error on OhMyZSH which was updated today...

But why would an error in the shell settings stop the web server?

[stevepiercy]

Looks like it never started. If you don't use OhMyZSH but some other shell, will it start? I just tried following the recommended procedure.

I skipped steps 3-5 because they are not required if you already have cookiecutter installed in the user space as their docs recommend: pip install --user cookiecutter.

I wonder if activate has something to do with it?

Also the cookiecutter readme and output upon installation recommends the following, instead of steps 9 and 10:

Change directory into your newly created project.
    cd pyramid_scaffold

Create a Python virtual environment.
    python3 -m venv env

Upgrade packaging tools.
    env/bin/pip install --upgrade pip setuptools

Install the project in editable mode with its testing requirements.
    env/bin/pip install -e ".[testing]"

Run your project's tests.
    env/bin/pytest

Run your project.
    env/bin/pserve development.ini

Steves-iMac:pyramid_scaffold stevepiercy$ env/bin/pytest
================================================= test session starts ==================================================
platform darwin -- Python 3.6.1, pytest-3.1.3, py-1.4.34, pluggy-0.4.0
rootdir: /Users/stevepiercy/projects/web_proj/pyramid_scaffold, inifile: pytest.ini
plugins: cov-2.5.1
collected 2 items

pyramid_scaffold/tests.py ..

=============================================== 2 passed in 1.04 seconds ===============================================
Steves-iMac:pyramid_scaffold stevepiercy$ env/bin/pserve development.ini
Starting server in PID 6694.
Serving on http://localhost:6543
Serving on http://localhost:6543

[mikeckennedy]

Hi Steve. Yes, if I use bash it will run fine. But for some reason, a misconfiguration in the git handling for ohmyzsh prevents pserve from running. I closed this because I'm just switching to bash for what I need. But I wonder if pserve course some how more gracefully handle this.

[mmerickel]

Hey guys, this is my fault. I released a version of plaster_pastedeploy last night that's going to break everyone until I fix it (sometime later tonight). If you downgrade to 0.3.2 things should work again.

https://github.com/Pylons/plaster_pastedeploy/issues/9

[mikeckennedy]

Hi Michael. Thanks for the heads up.

[mmerickel]

I pulled 0.4 from pypi so things might work by default right now.

[mikeckennedy]

I bet it will. Thanks.