我是在ubuntu中，自带的有python2,python3有安装了anaconda套件，所以python的版本很多，曾经想删除过不用的python．

先执行

sudo apt remove python*

在想安装anaconda，结果悲剧了，xorg没有了，结果只能ｃｍｄ玩耍了，一气之下重装ubuntu18系统了

dflx@dflx:~$ ps -t tty1

PID TTY TIME CMD

1889 tty1 00:00:00 gdm-x-session

1891 tty1 00:11:38 Xorg

2051 tty1 00:00:00 gnome-session-b

2365 tty1 00:16:43 gnome-shell

2520 tty1 00:00:00 ibus-daemon

我的python情况

dflx@dflx:~$ python

python python3 python3.6m python3m

python2 python3.6 python3.6m-config python3m-config

python2.7 python3.6-config python3-config

python路径

dflx@dflx:~$ whereis python

python: /usr/bin/python2.7

/usr/bin/python3.6m-config

/usr/bin/python /usr/bin/python3.6

/usr/bin/python3.6m

/usr/bin/python3.6-config

/usr/lib/python2.7

/usr/lib/python3.7

/usr/lib/python3.6

/etc/python2.7

/etc/python /etc/python3.6 /usr/local/lib/python2.7 /usr/local/lib/python3.6 /usr/include/python3.6 /usr/include/python3.6m /usr/share/python /home/dflx/anaconda3/bin/python3.6m-config /home/dflx/anaconda3/bin/python /home/dflx/anaconda3/bin/python3.6 /home/dflx/anaconda3/bin/python3.6m /home/dflx/anaconda3/bin/python3.6-config /usr/share/man/man1/python.1.gz

dflx@dflx:~$ which python

/home/dflx/anaconda3/bin/python

find查找命令

find “；

比如使用find命令,搜索在根目录下的所有condarc文件[anaconda源配置文件]所在位置，命令格式为find / -name "condarc"

dflx@dflx:~$ find / -name "condarc"

find: ‘/tmp/systemd-private-f3c0644e26174362bd722c3ae1177b11-systemd-timesyncd.service-58avLb’: 权限不够

find: ‘/tmp/systemd-private-f3c0644e26174362bd722c3ae1177b11-bolt.service-lPkFIh’: 权限不够

find: ‘/tmp/vmware-root’: 权限不够

find: ‘/tmp/pulse-PKdhtXMmr18n’: 权限不够

find: ‘/tmp/systemd-private-f3c0644e26174362bd722c3ae1177b11-colord.service-vIICqI’: 权限不够

/home/dflx/anaconda3/pkgs/conda-4.4.10-py36_0/info/test/tests/condarc

/home/dflx/anaconda3/pkgs/conda-4.5.4-py36_0/info/test/tests/condarc

cat 查看

dflx@dflx:~$ cat /home/dflx/anaconda3/pkgs/conda-4.4.10-py36_0/info/test/tests/condarc

# This is a sample .condarc file

# channel locations. These override conda defaults, i.e., conda will

# search *only* the channels listed here, in the order given. Use "defaults" to

# automatically include all default channels. Non-url channels will be

# interpreted as binstar usernames (this can be changed by modifying the

# channel_alias key; see below).

channels:

- binstar_username

- http://some.custom/channel

- defaults

# Alias to use for non-url channels used with the -c flag. Default is https://conda.binstar.org/

．．．．．．．．．．．．

查看另外一个

dflx@dflx:~$ cat /home/dflx/anaconda3/pkgs/conda-4.5.4-py36_0/info/test/tests/condarc

# This is a sample .condarc file

# channel locations. These override conda defaults, i.e., conda will

# search *only* the channels listed here, in the order given. Use "defaults" to

# automatically include all default channels. Non-url channels will be

# interpreted as binstar usernames (this can be changed by modifying the

# channel_alias key; see below).

channels:

- binstar_username

- http://some.custom/channel

- defaults

# Alias to use for non-url channels used with the -c flag. Default is https://conda.binstar.org/

channel_alias: https://your.repo/

# Proxy settings: http://[username]:[password]@[server]:[port]

proxy_servers:

http: http://user:pass@corp.com:8080

https: https://user:pass@corp.com:8080

查看源url

dflx@dflx:~$ conda config --show

add_anaconda_token: True

add_pip_as_python_dependency: True

aggressive_update_packages:

- ca-certificates

- certifi

- openssl

allow_non_channel_urls: False

allow_softlinks: False

always_copy: False

always_softlink: False

always_yes: None

anaconda_upload: None

auto_update_conda: True

changeps1: True

channel_alias: https://conda.anaconda.org

channel_priority: True

channels:

- https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/

- https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/conda-forge/

- https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/msys2/

- defaults

- conda-forge

在就是配置了一下多环境，我把vscode配ubuntu本身的python环境．因为我的selenium包，怎么在conda都安装不上．

dflx@dflx:~$ conda list

#只放了s 开头的包

scikit-image 0.13.1 py36h14c3975_1 defaults

scikit-learn 0.19.1 py36h7aa7ec6_0 defaults

scipy 1.0.0 py36hbf646e7_0 defaults

Scrapy 1.5.0

seaborn 0.8.1 py36hfad7ec4_0 defaults

send2trash 1.4.2 py36_0 defaults

service-identity 17.0.0

setuptools 38.4.0 py36_0 defaults

simplegeneric 0.8.1 py36_2 defaults

singledispatch 3.4.0.3 py36h7a266c3_0 defaults

sip 4.18.1 py36h51ed4ed_2 defaults

six 1.11.0 py36h372c433_1 defaults

snowballstemmer 1.2.1 py36h6febd40_0 defaults

sortedcollections 0.5.3 py36h3c761f9_0 defaults

sortedcontainers 1.5.9 py36_0 defaults

sphinx 1.6.6 py36_0 defaults

sphinxcontrib 1.0 py36h6d0f590_1 defaults

sphinxcontrib-websupport 1.0.1 py36hb5cb234_1 defaults

spyder 3.2.6 py36_0 defaults

sqlalchemy 1.2.1 py36h14c3975_0 defaults

sqlite 3.22.0 h1bed415_0 defaults

statsmodels 0.8.0 py36h8533d0b_0 defaults

sympy 1.1.1 py36hc6d1c1c_0 defaults

tblib

然而ubuntu自带的python包的情况如下

dflx@dflx:~$ pip3 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.

requests-unixsocket (0.1.5)

SecretStorage (2.3.1)

selenium (3.12.0)

setuptools (39.1.0)

simplejson (3.15.0)

six (1.11.0)

system-service (0.3)

systemd-python (234)

traitlets (4.3.2)

我anaconda安装selenium好像出错，我已经修改源的来源了.........

dflx@dflx:~$ conda install selenium

Solving environment: failed

# >>>>>>>>>>>>>>>>>>>>>> ERROR REPORT <<<<<<<<<<<<<<<<<<<<<<

`$ /home/dflx/anaconda3/bin/conda install selenium`

environment variables:

CIO_TEST=

CLASSPATH=.::/opt/java/jdk-9.0.1/lib:/opt/java/jdk-9.0.1/jre/lib

CONDA_ROOT=/home/dflx/anaconda3

DEFAULTS_PATH=/usr/share/gconf/ubuntu.default.path

MANDATORY_PATH=/usr/share/gconf/ubuntu.mandatory.path

PATH=/home/dflx/anaconda3/bin:/home/dflx/.local/bin:/usr/local/sbin:/usr/lo

cal/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/sna

p/bin:/opt/java/jdk-9.0.1/bin:/opt/java/jdk-9.0.1/jre/bin

REQUESTS_CA_BUNDLE=

SSL_CERT_FILE=

WINDOWPATH=1

ftp_proxy=

http_proxy=

https_proxy=

socks_proxy=

active environment : None

user config file : /home/dflx/.condarc

populated config files : /home/dflx/.condarc

conda version : 4.5.4

conda-build version : 3.4.1

python version : 3.6.4.final.0

base environment : /home/dflx/anaconda3 (writable)

channel URLs : https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/linux-64

https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/noarch

https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/conda-forge/linux-64

https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/conda-forge/noarch

https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/msys2/linux-64

https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/msys2/noarch

package cache : /home/dflx/anaconda3/pkgs

/home/dflx/.conda/pkgs

envs directories : /home/dflx/anaconda3/envs

/home/dflx/.conda/envs

platform : linux-64

user-agent : conda/4.5.4 requests/2.18.4 CPython/3.6.4 Linux/4.15.0-23-generic ubuntu/18.10 glibc/2.27

UID:GID : 1000:1000

netrc file : None

offline mode : False

V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V

CondaHTTPError: HTTP 000 CONNECTION FAILED for url

Elapsed: -

An HTTP error occurred when trying to retrieve this URL.

HTTP errors are often intermittent, and a simple retry will get you on your way.

ProxyError(MaxRetryError("HTTPSConnectionPool(host='mirrors.tuna.tsinghua.edu.cn', port=443): Max retries exceeded with url: /anaconda/cloud/msys2/linux-64/repodata.json (Caused by ProxyError('Cannot connect to proxy.', NewConnectionError(': Failed to establish a new connection: [Errno 111] Connection refused',)))",),)

A reportable application error has occurred. Conda has prepared the above report.

If submitted, this report will be used by core maintainers to improve

future releases of conda.

Would you like conda to send this report to the core maintainers?

[y/N]: n

No report sent. To permanently opt-out, use

$ conda config --set report_errors false

估计解决不了了，不折腾，采用自带python测试一下．

终于找到bug了，应该是代理服务的鬼

在使用wegt下载的时候发现的

dflx@dflx:~$ wget https://bootstrap.pypa.io/get-pip.py

--2018-06-22 16:37:01-- https://bootstrap.pypa.io/get-pip.py

正在连接 127.0.0.1:8888... 失败：拒绝连接。

使用netstat查看本地端口的使用情况

dflx@dflx:~$ sudo netstat -ntpl

激活Internet连接 (仅服务器)

Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name

tcp 0 0 0.0.0.0:902 0.0.0.0:* LISTEN 1865/vmware-authdla

tcp 0 0 0.0.0.0:8084 0.0.0.0:* LISTEN 1313/mono

tcp 0 0 127.0.0.53:53 0.0.0.0:* LISTEN 762/systemd-resolve

tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN 942/cupsd

tcp6 0 0 :::902 :::* LISTEN 1865/vmware-authdla

tcp6 0 0 ::1:631 :::* LISTEN 942/cupsd

发现并没有服务在占用端口8888

查看本地网络是否走了代理服务

dflx@dflx:~$ export | grep -i prox

declare -x ftp_proxy=""

declare -x http_proxy="127.0.0.1:8888"

declare -x https_proxy="127.0.0.1:8888"

declare -x socks_proxy=""

在找到了被占用的端口的8888， 确实是走了代理，于是问题找到了。

关闭服务

dflx@dflx:~$ unset https_proxy

dflx@dflx:~$ export | grep -i prox

declare -x ftp_proxy=""

declare -x http_proxy="127.0.0.1:8888"

declare -x socks_proxy=""

测试selenium，可以使用

from selenium import webdriver

req_url= "http://www.haosou.com/s?ie=utf-8&shb=1&src=360sou_newhome&q=python"

browser= webdriver.Firefox()

browser.get(req_url)

vscode控制带的结果

dflx@dflx:~/文档/python$ cd /home/dflx/文档/python ;

env "PYTHONIOENCODING=UTF-8" "PYTHONUNBUFFERED=1" /usr/bin/python3m /home/dflx/.vscode/extensions/ms-python.python-2018.6.0/pythonFiles/PythonTools/visualstudio_py_launcher.py

/home/dflx/文档/python 42367 34806ad9-833a-4524-8cd6-18ca4aa74f14

RedirectOutput,RedirectOutput /home/dflx/文档/python/bloy.py