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Python docs: use prepend_create_path

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prepend_path doesn't do anything if path doesn't already exist, so use
prepend_create_path.
This commit is contained in:
Tim D. Smith 2014-12-11 07:55:32 -08:00
parent 56e82c941e
commit df2e570fef
1 changed files with 4 additions and 4 deletions
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8
share/doc/homebrew/Python-for-Formula-Authors.md
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@ -58,7 +58,7 @@ Applications should be installed to `libexec`. This prevents the app's Python mo
In your formula's `install` method, first set the `PYTHONPATH` environment variable to your package's libexec site-packages directory with:
```ruby
ENV.prepend_path "PYTHONPATH", libexec/"lib/python2.7/site-packages"
ENV.prepend_create_path "PYTHONPATH", libexec/"lib/python2.7/site-packages"
```
Then, use `system` with `Language::Python.setup_install_args` to invoke `setup.py` like:
```ruby
@ -81,7 +81,7 @@ Each dependency **should** be explicitly installed; please do not rely on setup.
Set `PYTHONPATH` to include the `libexec/"vendor"` site-packages path with:
```ruby
ENV.prepend_path "PYTHONPATH", libexec/"vendor/lib/python2.7/site-packages"
ENV.prepend_create_path "PYTHONPATH", libexec/"vendor/lib/python2.7/site-packages"
```
before staging and installing each resourced dependency with:
```ruby
@ -107,14 +107,14 @@ class Foo < Formula
end
def install
ENV.prepend_path "PYTHONPATH", libexec/"vendor/lib/python2.7/site-packages"
ENV.prepend_create_path "PYTHONPATH", libexec/"vendor/lib/python2.7/site-packages"
%w[six parsedatetime].each do |r|
resource(r).stage do
system "python", *Language::Python.setup_install_args(libexec/"vendor")
end
end
ENV.prepend_path "PYTHONPATH", libexec/"lib/python2.7/site-packages"
ENV.prepend_create_path "PYTHONPATH", libexec/"lib/python2.7/site-packages"
system "python", *Language::Python.setup_install_args(libexec)
bin.install Dir[libexec/"bin/*"]