List of required Python packages for buildbot 2.8.x.
diff --git a/requirements.txt b/requirements.txt
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+attrs==20.1.0
+six==1.15.0
+Automat==20.2.0
+constantly==15.1.0
+idna==2.10
+hyperlink==20.0.1
+incremental==17.5.0
+Jinja2==2.11.2
+PyHamcrest==2.0.2
+Tempita==0.5.2
+decorator==4.4.2
+pbr==5.4.5
+sqlparse==0.3.1
+SQLAlchemy==1.3.19
+sqlalchemy-migrate==0.13.0
+certifi==2020.6.20
+chardet==3.0.4
+urllib3==1.25.10
+requests==2.24.0
+zope.interface==5.1.0
+pycparser==2.20
+pyOpenSSL==19.1.0
+pyasn1==0.4.8
+pyasn1-modules==0.2.8
+service-identity==18.1.0
+cryptography==3.0
+cffi==1.14.2
+Twisted==20.3.0
+treq==20.4.1
