fix: remove unsed render code & import pip

this fails for users that don't have `pip` installed in the env, but
this code is not used anyhow

plug/distPackage.py

@@ -15,25 +15,6 @@ def __init__(self, obj, req=None):
         self.version_spec = None
         self.req = req
 
-    def render_as_root(self, frozen):
-        if not frozen:
-            return '{0}=={1}'.format(self.project_name, self.version)
-        else:
-            return self.__class__.frozen_repr(self._obj)
-
-    def render_as_branch(self, frozen):
-        assert self.req is not None
-        if not frozen:
-            parent_ver_spec = self.req.version_spec
-            parent_str = self.req.project_name
-            if parent_ver_spec:
-                parent_str += parent_ver_spec
-            return (
-                '{0}=={1} [requires: {2}]'
-            ).format(self.project_name, self.version, parent_str)
-        else:
-            return self.render_as_root(frozen)
-
     def as_requirement(self):
         """Return a ReqPackage representation of this DistPackage"""
         return ReqPackage(self._obj.as_requirement(), dist=self)

plug/package.py

@@ -1,5 +1,3 @@
-import pip
-
 
 class Package(object):
     """Abstract class for wrappers around objects that pip returns.
@@ -24,11 +22,6 @@ def render(self, parent=None, frozen=False):
         else:
             return self.render_as_branch(frozen)
 
-    @staticmethod
-    def frozen_repr(obj):
-        fr = pip.FrozenRequirement.from_dist(obj, [])
-        return str(fr).strip()
-
     def __getattr__(self, key):
         return getattr(self._obj, key)
 

plug/reqPackage.py

@@ -37,23 +37,6 @@ def is_conflicting(self):
         req_obj = pkg_resources.Requirement.parse(req_version_str)
         return self.installed_version not in req_obj
 
-    def render_as_root(self, frozen):
-        if not frozen:
-            return '{0}=={1}'.format(self.project_name, self.installed_version)
-        elif self.dist:
-            return self.__class__.frozen_repr(self.dist._obj)
-        else:
-            return self.project_name
-
-    def render_as_branch(self, frozen):
-        if not frozen:
-            req_ver = self.version_spec if self.version_spec else 'Any'
-            return (
-                '{0} [required: {1}, installed: {2}]'
-            ).format(self.project_name, req_ver, self.installed_version)
-        else:
-            return self.render_as_root(frozen)
-
     def as_dict(self):
         return {'key': self.key,
                 'package_name': self.project_name,