Python告警处理

Issue A

=== pip list 告警 ===

root@pts/3 $ pip list
DEPRECATION: The default format will switch to columns in the future. 
You can use --format=(legacy|columns) (or define a format=(legacy|columns) in 
your pip.conf under the [list] section) to disable this warning.

Fix A

root@pts/3 $ cat /root/.pip/pip.conf
[list]
format=columns

---

Issue B

=== ** SNIMissingWarning / InsecurePlatformWarning** ===

root@pts/2 $ pip install xlrd
Collecting xlrd
/usr/lib/python2.7/site-packages/pip-9.0.1-py2.7.egg/pip/_vendor/requests/packages/urllib3/util/ssl_.py:318: SNIMissingWarning: An HTTPS request has been made, but the SNI (Subject Name Indication) extension to TLS is not available on this platform. This may cause the server to present an incorrect TLS certificate, which can cause validation failures. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.io/en/latest/security.html#snimissingwarning.
  SNIMissingWarning
/usr/lib/python2.7/site-packages/pip-9.0.1-py2.7.egg/pip/_vendor/requests/packages/urllib3/util/ssl_.py:122: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.io/en/latest/security.html#insecureplatformwarning.
  InsecurePlatformWarning

Fix B

pip install pyopenssl

---

Issue C

=== ** fatal error: pyconfig.h: No such file or directory** ===

    creating build/temp.linux-x86_64-2.7/build/temp.linux-x86_64-2.7
    gcc -pthread -fno-strict-aliasing -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic -D_GNU_SOURCE -fPIC -fwrapv -DNDEBUG -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic -D_GNU_SOURCE -fPIC -fwrapv -fPIC -I/usr/include/python2.7 -c build/temp.linux-x86_64-2.7/_openssl.c -o build/temp.linux-x86_64-2.7/build/temp.linux-x86_64-2.7/_openssl.o
    build/temp.linux-x86_64-2.7/_openssl.c:12:24: fatal error: pyconfig.h: No such file or directory
     #  include <pyconfig.h>
                            ^
    compilation terminated.
    error: command 'gcc' failed with exit status 1

Fix C

yum install -y python-devel

---

Issue D

   File "/usr/local/python27/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 1119, in build_and_install
      self.run_setup(setup_script, setup_base, args)
    File "/usr/local/python27/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 1107, in run_setup
      raise DistutilsError("Setup script exited with %s" % (v.args[0],))
  distutils.errors.DistutilsError: Setup script exited with error: command 'gcc' failed with exit status 1

  ----------------------------------------
  Failed cleaning build dir for cryptography

Fix D

## make sure had installed gcc and gcc-c++
yum install gcc gcc-c++

## then install libffi-devel
pip install libffi-devel

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