diff --git a/meta/lib/oeqa/selftest/cases/devtool.py b/meta/lib/oeqa/selftest/cases/devtool.py
index 3eea2b1a0e..ddf6c0c9f8 100644
--- a/meta/lib/oeqa/selftest/cases/devtool.py
+++ b/meta/lib/oeqa/selftest/cases/devtool.py
@@ -444,7 +444,7 @@ class DevtoolAddTests(DevtoolBase):
         checkvars['S'] = '${WORKDIR}/MarkupSafe-%s' % testver
         checkvars['SRC_URI'] = url
         self._test_recipe_contents(recipefile, checkvars, [])
-
+     
     def test_devtool_add_fetch_git(self):
         tempdir = tempfile.mkdtemp(prefix='devtoolqa')
         self.track_for_cleanup(tempdir)
@@ -544,6 +544,19 @@ class DevtoolAddTests(DevtoolBase):
         # Test devtool build
         result = runCmd('devtool build %s' % pn)
 
+    def test_devtool_add_python_egg_requires(self):
+        # Fetch source
+        tempdir = tempfile.mkdtemp(prefix='devtoolqa')
+        self.track_for_cleanup(tempdir)
+        testver = '0.14.0'
+        url = 'https://files.pythonhosted.org/packages/e9/9e/25d59f5043cf763833b2581c8027fa92342c4cf8ee523b498ecdf460c16d/uvicorn-%s.tar.gz' % testver
+        testrecipe = 'python3-uvicorn'
+        srcdir = os.path.join(tempdir, testrecipe)
+        # Test devtool add
+        self.track_for_cleanup(self.workspacedir)
+        self.add_command_to_tearDown('bitbake-layers remove-layer */workspace')
+        result = runCmd('devtool add %s %s -f %s' % (testrecipe, srcdir, url))
+
 class DevtoolModifyTests(DevtoolBase):
 
     def test_devtool_modify(self):
diff --git a/scripts/lib/recipetool/create_buildsys_python.py b/scripts/lib/recipetool/create_buildsys_python.py
index f4f51c88b4..5686a62d3f 100644
--- a/scripts/lib/recipetool/create_buildsys_python.py
+++ b/scripts/lib/recipetool/create_buildsys_python.py
@@ -209,6 +209,18 @@ class PythonRecipeHandler(RecipeHandler):
                             continue
 
                         if line.startswith('['):
+                            # PACKAGECONFIG must not contain expressions or whitespace
+                            line = line.replace(" ", "")
+                            line = line.replace(':', "")
+                            line = line.replace('.', "-dot-")
+                            line = line.replace('"', "")
+                            line = line.replace('<', "-smaller-")
+                            line = line.replace('>', "-bigger-")
+                            line = line.replace('_', "-")
+                            line = line.replace('(', "")
+                            line = line.replace(')', "")
+                            line = line.replace('!', "-not-")
+                            line = line.replace('=', "-equals-")
                             current_feature = line[1:-1]
                         elif current_feature:
                             extras_req[current_feature].append(line)
@@ -297,6 +309,7 @@ class PythonRecipeHandler(RecipeHandler):
                 lines_after.append('# The following configs & dependencies are from setuptools extras_require.')
                 lines_after.append('# These dependencies are optional, hence can be controlled via PACKAGECONFIG.')
                 lines_after.append('# The upstream names may not correspond exactly to bitbake package names.')
+                lines_after.append('# The configs are might not correct, since PACKAGECONFIG does not support expressions as may used in requires.txt - they are just replaced by text.')
                 lines_after.append('#')
                 lines_after.append('# Uncomment this line to enable all the optional features.')
                 lines_after.append('#PACKAGECONFIG ?= "{}"'.format(' '.join(k.lower() for k in extras_req)))