test for comments in reqs files

#35

pipenv/cli.py

@@ -64,6 +64,15 @@ def ensure_project(dev=False):
     ensure_virtualenv()
 
 
+def clean_requirement(requirement):
+    """Cleans given requirement from additional data like, comments."""
+    return requirement[:requirement.index('#') - 1].strip() if ' #' in requirement else requirement.strip()
+
+def from_requirements_file(r):
+    """Returns a list of packages from an open requirements file."""
+    return [clean_requirement(p) for p in r.read().split('\n') if p and not p.startswith('#')]
+
+
 def do_where(virtualenv=False, bare=True):
     """Executes the where functionality."""
 
@@ -296,10 +305,6 @@ def which_pip(allow_global=False):
 
     return which('pip')
 
-def from_requirements_file(r):
-    """Returns a list of packages from an open requirements file."""
-    return [p for p in r.read().split('\n') if p and not p.startswith('#')]
-
 
 
 @click.group(invoke_without_command=True)

tests/requirements_django.txt

@@ -1 +1 @@
-Django>1.10
+Django>1.10  #django