【已解决】Mac中PyCharm调试selenium出错：selenium.common.exceptions.WebDriverException chromedriver executable needs to be in PATH

折腾：

【记录】尝试用Python操作PhantomJS+Selenium去模拟购物操作

期间，结果用代码：

from selenium import webdriver

browser = webdriver.Chrome()

browser.get(‘http://www.baidu.com/‘)

在PyCharm中调试出错：

好像是：

“‘%s’ executable needs to be in PATH. %s” % (

还是：

[Errno 2] No such file or directory

-》

的确是需要在命令行中运行：

/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/bin/python2.7 /Applications/PyCharm.app/Contents/helpers/pydev/pydevd.py –multiproc –qt-support –client 127.0.0.1 –port 53046 —file xxx/AutoOrder.py

warning: Debugger speedups using cython not found. Run ‘”/usr/local/opt/python/bin/python2.7″ “/Applications/PyCharm.app/Contents/helpers/pydev/setup_cython.py” build_ext –inplace’ to build.

pydev debugger: process 16353 is connecting

Connected to pydev debugger (build 163.15188.4)

Traceback (most recent call last):

  File “/Applications/PyCharm.app/Contents/helpers/pydev/pydevd.py”, line 1596, in <module>

    globals = debugger.run(setup[‘file’], None, None, is_module)

  File “/Applications/PyCharm.app/Contents/helpers/pydev/pydevd.py”, line 974, in run

    pydev_imports.execfile(file, globals, locals)  # execute the script

  File “/xxx/AutoOrder.py”, line 3, in <module>

    browser = webdriver.Chrome()

  File “/usr/local/lib/python2.7/site-packages/selenium/webdriver/chrome/webdriver.py”, line 62, in __init__

    self.service.start()

  File “/usr/local/lib/python2.7/site-packages/selenium/webdriver/common/service.py”, line 81, in start

    os.path.basename(self.path), self.start_error_message)

selenium.common.exceptions.WebDriverException: Message: ‘chromedriver’ executable needs to be in PATH. Please see https://sites.google.com/a/chromium.org/chromedriver/home

那换到命令行中试试：

结果命令行中也找不到：

➜  AutoOrder ll   

total 8

-rw-r–r–  1 crifan  staff    97B Nov  9 20:27 AutoOrder.py

➜  AutoOrder python AutoOrder.py

Traceback (most recent call last):

  File “AutoOrder.py”, line 1, in <module>

    from selenium import webdriver

ImportError: No module named selenium

➜  AutoOrder python –version

Python 2.7.10

➜  AutoOrder where python

/usr/bin/python

➜  AutoOrder which pytho

pytho not found

➜  AutoOrder which python

/usr/bin/python

➜  AutoOrder

换到Mac的Terminal中也是同样现象：

➜  AutoOrder python AutoOrder.py

Traceback (most recent call last):

  File “AutoOrder.py”, line 3, in <module>

    browser = webdriver.Chrome()

  File “/usr/local/lib/python2.7/site-packages/selenium/webdriver/chrome/webdriver.py”, line 62, in __init__

    self.service.start()

  File “/usr/local/lib/python2.7/site-packages/selenium/webdriver/common/service.py”, line 81, in start

    os.path.basename(self.path), self.start_error_message)

selenium.common.exceptions.WebDriverException: Message: ‘chromedriver’ executable needs to be in PATH. Please see https://sites.google.com/a/chromium.org/chromedriver/home

看来只能是想办法解决上面那个：

selenium.common.exceptions.WebDriverException: Message: chromedriver executable needs to be in PATH

python – Error message: “‘chromedriver’ executable needs to be available in the path” – Stack Overflow

linux – Running Selenium WebDriver python bindings in chrome – Stack Overflow

python – Error message: “‘chromedriver’ executable needs to be available in the path” – Stack Overflow

Selenium配合chromedriver提示“Message: ‘chromedriver’ executable needs to be in PATH.Please see …” – CSDN博客

python – selenium – chromedriver executable needs to be in PATH – Stack Overflow

-》

Downloads – ChromeDriver – WebDriver for Chrome

-》

https://chromedriver.storage.googleapis.com/index.html?path=2.33/

-》

https://chromedriver.storage.googleapis.com/2.33/chromedriver_mac64.zip

linux – Running Selenium WebDriver python bindings in chrome – Stack Overflow

-》

试试

➜  AutoOrder brew install chromedriver

==> Downloading https://chromedriver.storage.googleapis.com/2.32/chromedriver_mac64.zip

ChromeDriver – WebDriver for Chrome

“ChromeDriver

”

https://chromedriver.storage.googleapis.com/index.html

-》

https://chromedriver.storage.googleapis.com/index.html?path=2.32/

https://chromedriver.storage.googleapis.com/index.html?path=2.33/

下载得到：

chromedriver_mac64.zip

解压后得到chromedriver：

然后就可以去试试了。

对于：

➜  AutoOrder echo $PATH

/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin

所以干脆把chromedriver拷贝到/usr/local/bin吧

不过暂时试试软链接是否可行：

➜  bin git:(master) ✗ ln -s /Users/crifan/dev/dev_root/projects/亚马逊/自动下单/AutoOrder/chromedriver  chromedriver

➜  bin git:(master) ✗ ll

。。。

lrwxr-xr-x  1 crifan  admin    81B 11  9 21:15 chromedriver -> /Users/crifan/dev/dev_root/projects/亚马逊/自动下单/AutoOrder/chromedriver

结果再去运行，倒是貌似可以了：

然后点击一下才能继续运行：

【总结】

此处PyCharm中运行selenium报错：

selenium.common.exceptions.WebDriverException: Message: chromedriver executable needs to be in PATH

的原因：

不是PyCharm的问题，而是本身selenium如果用Chrome的话，需要先下载和能调用到chromedriver的。

对应的办法：

1.Mac中，可以直接用brew下载：

brew install chromedriver

其会自动去下载对应的chromedriver的mac的包的：

https://chromedriver.storage.googleapis.com/2.32/chromedriver_mac64.zip

-》但是此处翻墙网速不行，即使翻墙速度没法下载。

2.自己手动下载

去：

https://chromedriver.storage.googleapis.com/index.html

可以找到所有的版本的，包括最新版本的：

https://chromedriver.storage.googleapis.com/index.html?path=2.33/

中的：

https://chromedriver.storage.googleapis.com/2.33/chromedriver_mac64.zip

（或：

Windows平台的话是：

https://chromedriver.storage.googleapis.com/2.33/chromedriver_win32.zip

）

下载后，解压得到chromedriver的二进制文件

-》放到PATH的路径中即可

-》此处通过：

echo $PATH

而得到很多路径

/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin

选择其中一个：

/usr/local/bin

去：

• 制作一个chromedriver的软链接

• ln -s /your/path/to//chromedriver  chromedriver

• 直接拷贝chromedriver到该目录

均可。

之后代码中再去调用：

#!/usr/bin/python

# -*- coding: utf-8 -*-

from selenium import webdriver

from selenium.webdriver.common.keys import Keys

driver = webdriver.Chrome()

driver.get(‘http://www.baidu.com/‘)

assert u”百度” in driver.title

searchElement = driver.find_element_by_name(“wd”)

searchElement.send_keys(“crifan”)

searchElement.send_keys(Keys.RETURN)

print driver.page_source

就可以正常调用Chrome浏览器内容，显示出Chrome浏览器了：

【后记】

后来在：

Selenium take screenshot – Python Tutorial

看到好像有个ChromeOptions，然后可以指定binary_location

-》如果可以，这样就可以不用非要把

chromedriver

放到PATH环境变量中了

直接放到和程序代码一起，便于后续把下载好的chromedriver和python代码一起给别人使用，别人就不用安装了。

去试试

selenium ChromeOptions

Capabilities & ChromeOptions – ChromeDriver – WebDriver for Chrome

顺带再去看看chromedriver的信息：

➜  python git:(master) ll /usr/local/bin/chromedriver

lrwxr-xr-x  1 crifan  admin    81B 11  9 21:15 /usr/local/bin/chromedriver -> /Users/crifan/dev/dev_root/projects/亚马逊/自动下单/AutoOrder/chromedriver

➜  python git:(master) /Users/crifan/dev/dev_root/projects/亚马逊/自动下单/AutoOrder

➜  AutoOrder chromedriver –help

Usage: chromedriver [OPTIONS]

Options

  –port=PORT                     port to listen on

  –adb-port=PORT                 adb server port

  –log-path=FILE                 write server log to file instead of stderr, increases log level to INFO

  –verbose                       log verbosely

  –version                       print the version number and exit

  –silent                        log nothing

  –url-base                      base URL path prefix for commands, e.g. wd/url

  –port-server                   address of server to contact for reserving a port

  –whitelisted-ips               comma-separated whitelist of remote IPv4 addresses which are allowed to connect to ChromeDriver

➜  AutoOrder chromedriver –version

ChromeDriver 2.33.506106 (8a06c39c4582fbfbab6966dbb1c38a9173bfb1a2)

➜  AutoOrder which chromedriver

/usr/local/bin/chromedriver

DesiredCapabilities · SeleniumHQ/selenium Wiki

Capabilities & ChromeOptions – ChromeDriver – WebDriver for Chrome

用了代码：

# driver = webdriver.Chrome()

chromeOptions = webdriver.ChromeOptions()

chromeOptions.binary_location = “./libs/chromedriver”

logging.info(“chromeOptions=%s”, chromeOptions)

sys.path.append(“./libs”)

driver = webdriver.Chrome(chrome_options=chromeOptions)

结果还是报之前错误：

selenium.common.exceptions.WebDriverException: Message: ‘chromedriver’ executable needs to be in PATH. Please see https://sites.google.com/a/chromium.org/chromedriver/home

-》看来代码中用sys.path.append加上chromedriver的路径的做法，并不能设置PATH

-》所以还是会报必须在PATH中才行。

-》所以这条路行不通，放弃。

再去设置路径是设置的是绝对路径看看是否可行。

结果：

chromeOptions = webdriver.ChromeOptions()

curPath = os.getcwd()

logging.info(“curPath=%s”, curPath)

chromeBinFullPath = os.path.join(curPath, “libs/chromedriver”)

logging.info(“chromeBinFullPath=%s”, chromeBinFullPath)

chromeOptions.binary_location = chromeBinFullPath

logging.info(“chromeOptions=%s”, chromeOptions)

sys.path.append(“./libs”)

driver = webdriver.Chrome(chrome_options=chromeOptions)

问题依旧。还是不行。

所以放弃这个思路。

【后记 2017-11-18】

后来看到：

8. Appendix: Frequently Asked Questions — Selenium Python Bindings 2 documentation

中提到：

webdriver.Chrome初始化时可以传入executable_path指定chromedriver二进制的位置

去试试，结果：

driver = webdriver.Chrome(executable_path=“./libs/chromdriver”)

或：

logging.info(“chromeOptions=%s”, chromeOptions)

driver = webdriver.Chrome(executable_path=”./libs/chromdriver”, chrome_options=chromeOptions)

都还是报同样的错误：

selenium.common.exceptions.WebDriverException: Message: ‘chromdriver’ executable needs to be in PATH.

所以，看来还是不行。

-》感觉根本就不支持设置binary的path，这条路完全不通。

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