Relative paths cause file open bug

[kelleyl]

Bug Description

When running a clams app using the cli.py script, if the script is not run from the same directory as the app, any relative file paths will not work correctly.

Reproduction steps

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior

No response

Log output

No response

Screenshots

No response

Additional context

clams-python/clams/develop/templates/app/metadata.py.template

Line 39 in 5ed5876

analyzer_version=[l.strip().rsplit('==')[-1] for l in open('requirements.txt').readlines() if re.match(r'^ANALYZER_NAME==', l)][0],

This reference to requirements.txt will need to change.