diff --git a/.deepsource.toml b/.deepsource.toml
new file mode 100644
index 00000000..1cd8dcda
--- /dev/null
+++ b/.deepsource.toml
@@ -0,0 +1,16 @@
+version = 1
+
+test_patterns = ["tests/**"]
+
+exclude_patterns = [
+    "examples/**",
+    "pipenv/vendor/**",
+    "pipenv/patched/**"
+]
+
+[[analyzers]]
+name = "python"
+enabled = true
+
+  [analyzers.meta]
+  runtime_version = "3.x.x" 
diff --git a/pipenv/_compat.py b/pipenv/_compat.py
index fdcca7f5..04040c74 100644
--- a/pipenv/_compat.py
+++ b/pipenv/_compat.py
@@ -36,7 +36,7 @@ def getpreferredencoding():
     # Borrowed from Invoke
     # (see https://github.com/pyinvoke/invoke/blob/93af29d/invoke/runners.py#L881)
     _encoding = locale.getpreferredencoding(False)
-    if six.PY2 and not sys.platform == "win32":
+    if six.PY2 and sys.platform != "win32":
         _default_encoding = locale.getdefaultlocale()[1]
         if _default_encoding is not None:
             _encoding = _default_encoding
diff --git a/pipenv/environments.py b/pipenv/environments.py
index 945e1930..fce4bf94 100644
--- a/pipenv/environments.py
+++ b/pipenv/environments.py
@@ -3,8 +3,6 @@
 import os
 import sys
 
-from io import UnsupportedOperation
-
 from appdirs import user_cache_dir
 
 from ._compat import fix_utf8
diff --git a/pipenv/project.py b/pipenv/project.py
index 9709609f..6d589429 100644
--- a/pipenv/project.py
+++ b/pipenv/project.py
@@ -726,7 +726,7 @@ class Project(object):
         if not self.pipfile_exists:
             return True
 
-        if not len(self.read_pipfile()):
+        if not self.read_pipfile():
             return True
 
         return False
diff --git a/tasks/vendoring/__init__.py b/tasks/vendoring/__init__.py
index 03b25e68..34aa9183 100644
--- a/tasks/vendoring/__init__.py
+++ b/tasks/vendoring/__init__.py
@@ -47,7 +47,6 @@ PY2_DOWNLOAD = ["enum34"]
 
 # from time to time, remove the no longer needed ones
 HARDCODED_LICENSE_URLS = {
-    "pytoml": "https://github.com/avakar/pytoml/raw/master/LICENSE",
     "cursor": "https://raw.githubusercontent.com/GijsTimmers/cursor/master/LICENSE",
     "delegator.py": "https://raw.githubusercontent.com/amitt001/delegator.py/master/LICENSE",
     "click-didyoumean": "https://raw.githubusercontent.com/click-contrib/click-didyoumean/master/LICENSE",