python所遇到的坑

我是在ubuntu中，自帶的有python2,python3有安裝了anaconda套件，因此python的版本不少，曾經想刪除過不用的python．

先執行

sudo apt remove python*

在想安裝anaconda，結果悲劇了，xorg沒有了，結果只能ｃｍｄ玩耍了，一氣之下重裝ubuntu18系統了

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

個人python狀況

dflx@dflx:~$ python python python3 python3.6m python3m python2 python3.6 python3.6m-config python3m-config python2.7 python3.6-config python3-config 

python路徑

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 <指定目錄> <指定條件> <指定動做>「；
好比使用find命令,搜索在根目錄下的全部condarc文件[anaconda源配置文件]所在位置，命令格式爲find / -name "condarc"

 dflx@dflx:~$ find / -name "condarc" find: ‘/tmp/systemd-private-f3c0644e26174362bd722c3ae1177b11-systemd-timesyncd.service-58avLb’: 權限不夠 find: ‘/tmp/systemd-private-f3c0644e26174362bd722c3ae1177b11-bolt.service-lPkFIh’: 權限不夠 find: ‘/tmp/vmware-root’: 權限不夠 find: ‘/tmp/pulse-PKdhtXMmr18n’: 權限不夠 find: ‘/tmp/systemd-private-f3c0644e26174362bd722c3ae1177b11-colord.service-vIICqI’: 權限不夠 /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/ ．．．．．．．．．．．．

查看另一個

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環境，我把vscode配ubuntu自己的python環境．由於個人selenium包，怎麼在conda都安裝不上．

dflx@dflx:~$ conda list #只放了s 開頭的包 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 <pip> seaborn 0.8.1 py36hfad7ec4_0 defaults send2trash 1.4.2 py36_0 defaults service-identity 17.0.0 <pip> 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自帶的python包的狀況以下

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安裝selenium好像出錯，我已經修改源的來源了.........

dflx@dflx:~$ conda install selenium Solving environment: failed # >>>>>>>>>>>>>>>>>>>>>> ERROR REPORT <<<<<<<<<<<<<<<<<<<<<< `$ /home/dflx/anaconda3/bin/conda install selenium` environment variables: CIO_TEST=<not set> 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=<not set> SSL_CERT_FILE=<not set> WINDOWPATH=1 ftp_proxy=<set> http_proxy=<set> https_proxy=<set> socks_proxy=<set> 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 <https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/msys2/linux-64/repodata.json> 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('<urllib3.connection.VerifiedHTTPSConnection object at 0x7f693e9ef780>: 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

估計解決不了了，不折騰，採用自帶python測試一下．

終於找到bug了，應該是代理服務的鬼

在使用wegt下載的時候發現的

dflx@dflx:~$ wget https://bootstrap.pypa.io/get-pip.py --2018-06-22 16:37:01-- https://bootstrap.pypa.io/get-pip.py 正在鏈接 127.0.0.1:8888... 失敗：拒絕鏈接。

使用netstat查看本地端口的使用狀況

dflx@dflx:~$ sudo netstat -ntpl 激活Internet鏈接 (僅服務器) 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 

發現並無服務在佔用端口8888

查看本地網絡是否走了代理服務

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=""

在找到了被佔用的端口的8888， 確實是走了代理，因而問題找到了。

關閉服務

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=""

測試selenium，能夠使用

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控制帶的結果 廈門叉車市場

dflx@dflx:~/文檔/python$ cd /home/dflx/文檔/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/文檔/python 42367 34806ad9-833a-4524-8cd6-18ca4aa74f14 RedirectOutput,RedirectOutput /home/dflx/文檔/python/bloy.py

參考文章Linux下怎樣搜索文件CondaHTTPError: HTTP 000 CONNECTION FAILED for urlwget 正在鏈接 127.0.0.1:36627... 失敗：拒絕鏈接