error: Pip package install meet RequestsDependencyWarningfirst when update by: !pip install --quiet lucid==0.2.3 the warning is relavent to old crypto: ~/isic/local/lib/python2.7/site-packages/pip/_vendor/requests/__init__.py:83: RequestsDependencyWarning: Old version of cryptography ([1, 2, 3]) may cause slowdown. warnings.warn(warning, RequestsDependencyWarning) therefore update: sudo pip install --upgrade cryptography the version is upgraded, But something broken, cause: $pip list Traceback (most recent call last): File "/isic/bin/pip", line 7, in <module> from pip._internal import main File "/isic/local/lib/python2.7/site-packages/pip/_internal/__init__.py", line 40, in <module> from pip._internal.cli.autocompletion import autocomplete File "/isic/local/lib/python2.7/site-packages/pip/_internal/cli/autocompletion.py", line 8, in <module> from pip._internal.cli.main_parser import create_main_parser File "/isic/local/lib/python2.7/site-packages/pip/_internal/cli/main_parser.py", line 12, in <module> from pip._internal.commands import ( File "/isic/local/lib/python2.7/site-packages/pip/_internal/commands/__init__.py", line 6, in <module> from pip._internal.commands.completion import CompletionCommand File "/isic/local/lib/python2.7/site-packages/pip/_internal/commands/completion.py", line 6, in <module> from pip._internal.cli.base_command import Command File "/isic/local/lib/python2.7/site-packages/pip/_internal/cli/base_command.py", line 18, in <module> from pip._internal.download import PipSession File "/isic/local/lib/python2.7/site-packages/pip/_internal/download.py", line 15, in <module> from pip._vendor import requests, six, urllib3 File "/isic/local/lib/python2.7/site-packages/pip/_vendor/requests/__init__.py", line 97, in <module> from pip._vendor.urllib3.contrib import pyopenssl File "/isic/local/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.py", line 46, in <module> import OpenSSL.SSL File "/usr/lib/python2.7/dist-packages/OpenSSL/__init__.py", line 8, in <module> from OpenSSL import rand, crypto, SSL File "/usr/lib/python2.7/dist-packages/OpenSSL/SSL.py", line 118, in <module> SSL_ST_INIT = _lib.SSL_ST_INIT AttributeError: 'module' object has no attribute 'SSL_ST_INIT' Resolved this by resintalling PyOpenSSL() and pip will automatically upgrade: sudo python -m easy_install --upgrade pyOpenSSL pip --version pip 18.1 from ~/isic/local/lib/python2.7/site-packages/pip (python 2.7) error: graphviz graphviz installed but ask exe path add to $PATH not use pip install, changed to: # ! sudo apt-get install graphviz keras load_model() The added layer must be an instance of class Layer. Found: change from tensorflow.python.keras.models import load_model to from keras.models import load_model |