diff --git a/src/exabgp/cli/command.py b/src/exabgp/cli/command.py
index 0ba2dffd9..4e13b38a6 100644
--- a/src/exabgp/cli/command.py
+++ b/src/exabgp/cli/command.py
@@ -6,6 +6,11 @@
 from vyos.util import call
 from vyos.util import popen
 
+if sys.version_info[:3] < (3,7):
+    def breakpoint():
+        import pdb;
+        pdb.set_trace()
+        pass
 
 def _nop(config, path):
     order = path[0]
diff --git a/src/exabgp/conf/yang/code.py b/src/exabgp/conf/yang/code.py
index 5a0f8a4d5..bdd9f2e8e 100644
--- a/src/exabgp/conf/yang/code.py
+++ b/src/exabgp/conf/yang/code.py
@@ -22,6 +22,12 @@
 from exabgp.conf.yang.datatypes import kw
 from exabgp.conf.yang.datatypes import ranges
 
+import sys
+if sys.version_info[:3] < (3,7):
+    def breakpoint():
+        import pdb;
+        pdb.set_trace()
+        pass
 
 class Code(object):
     def __init__(self, tree):
diff --git a/src/exabgp/conf/yang/parser.py b/src/exabgp/conf/yang/parser.py
index 52f65b5af..f95525955 100644
--- a/src/exabgp/conf/yang/parser.py
+++ b/src/exabgp/conf/yang/parser.py
@@ -16,6 +16,12 @@
 from exabgp.conf.yang.datatypes import words
 from exabgp.conf.yang.datatypes import types
 
+import sys
+if sys.version_info[:3] < (3,7):
+    def breakpoint():
+        import pdb;
+        pdb.set_trace()
+        pass
 
 DEBUG = True