install library dotenv

handlers/requirements.txt

@@ -2,11 +2,13 @@ aiodns==3.2.0
 certifi==2022.12.7
 cffi==1.17.1
 charset-normalizer==3.1.0
+dotenv==0.9.9
 idna==3.4
 pyasn1==0.6.1
 pyasn1_modules==0.4.1
 pycares==4.5.0
 pycparser==2.22
+python-dotenv==1.1.0
 requests==2.29.0
 six==1.16.0
 slixmpp==1.9.1