--- a/scripts/install-debugclients.py	Sat Aug 31 12:29:57 2019 +0200
+++ b/scripts/install-debugclients.py	Sat Aug 31 12:58:11 2019 +0200
@@ -12,17 +12,6 @@
 """
 
 from __future__ import unicode_literals, print_function
-try:
-    import cStringIO as io
-    try:
-        from PyQt5 import sip
-    except ImportError:
-        import sip
-    sip.setapi('QString', 2)
-    sip.setapi('QVariant', 2)
-    sip.setapi('QTextStream', 2)
-except (ImportError):
-    import io    # __IGNORE_WARNING__
 
 import sys
 import os
@@ -30,6 +19,7 @@
 import compileall
 import shutil
 import fnmatch
+import io
 
 # Define the globals.
 progName = None
@@ -53,7 +43,6 @@
     global currDir
     
     if sys.platform.startswith("win"):
-        # different meaning of input between Py2 and Py3
         try:
             input("Press enter to continue...")
         except (EOFError, SyntaxError):
@@ -253,9 +242,8 @@
     global progName, modDir, doCleanup, doCompile, distDir
     global sourceDir
     
-    if sys.version_info < (2, 7, 0) or sys.version_info > (3, 9, 9):
-        print('Sorry, eric6 requires at least Python 2.7 or '
-              'Python 3 for running.')
+    if sys.version_info < (3, 5, 0) or sys.version_info > (3, 99, 99):
+        print('Sorry, eric6 requires at least Python 3.5 for running.')
         exit(5)
     
     progName = os.path.basename(argv[0])
@@ -317,7 +305,6 @@
     if doCompile:
         print("\nCompiling source files ...")
         skipRe = re.compile(r"DebugClients[\\/]Python[\\/]")
-        # Hide compile errors (mainly because of Py2/Py3 differences)
         sys.stdout = io.StringIO()
         if distDir:
             compileall.compile_dir(