[pipenv] pre=True

Signed-off-by: Kenneth Reitz <me@kennethreitz.org>

pipenv/cli.py

@@ -1645,6 +1645,10 @@ def install(
     # Ensure that virtualenv is available.
     ensure_project(three=three, python=python, system=system, warn=True)
 
+    # Load the --pre settings from the Pipfile.
+    if not pre:
+        pre = project.settings.get('pre')
+
     if requirements:
         click.echo(crayons.normal(u'Requirements file provided! Importing into Pipfile…', bold=True), err=True)
         import_requirements(r=requirements, dev=dev)
@@ -1863,6 +1867,11 @@ def lock(three=None, python=False, verbose=False, requirements=False, clear=Fals
     # Ensure that virtualenv is available.
     ensure_project(three=three, python=python)
 
+    # Load the --pre settings from the Pipfile.
+    if not pre:
+        pre = project.settings.get('pre')
+
+
     if requirements:
         do_init(dev=True, requirements=requirements)
 

pipenv/project.py

@@ -239,6 +239,11 @@ class Project(object):
 
         return pfile
 
+    @property
+    def settings(self):
+        """A dictionary of the settings added to the Pipfile."""
+        return self.parsed_pipfile.get('pipenv', {})
+
     @property
     def _lockfile(self):
         """Pipfile.lock divided by PyPI and external dependencies."""