2.1

CHANGELOG.md

+# v2.1
+
+* added read_dependency_links
+
 # v2.0
 
 * got rid of the Mako dependency

docs/utilities.rst

@@ -29,9 +29,12 @@ Then you can write the following in your setup.py:
 
 .. code-block:: python
 
-    from snakehouse import read_requirements_txt
+    from snakehouse import read_requirements_txt, read_dependency_links
 
-    setup(install_requires=read_requirements_txt())
+    setup(install_requires=read_requirements_txt(),
+          dependency_links=read_dependency_links())
 
 .. autofunction:: snakehouse.read_requirements_txt
 
+
+

setup.cfg

@@ -2,7 +2,7 @@
 [metadata]
 name = snakehouse
 keywords = cython, extension, multiple, pyx
-version = 2.0
+version = 2.1
 long_description = file: README.md
 long_description_content_type = text/markdown; charset=UTF-8
 license_files = LICENSE

snakehouse/requirements.py

@@ -58,8 +58,16 @@ def read_requirements_txt(path: str = 'requirements.txt'):
     lines = (line for line in lines if not line.startswith('git+'))
     lines = (line for line in lines if not line.startswith('http'))
     lines = (line for line in lines if line)
+    lines = (line for line in lines if not line.startwith('--'))
     return list(lines)
 
+
+def read_dependency_links(path: str = 'requirements.txt'):
+    lines = read_lines(path)
+    lines = (line for line in lines if line.startwith('--extra'))
+    return list(lines)
+
+
 def read_lines(path: str, delete_empty_lines: bool = True,
                encoding: str = 'utf-8') -> tp.List[str]:
     """