height: It is an optional argument, used to set the height of the exported plot layout obj, by default it will be ignored.width: It is an optional argument, used to set the width of the exported plot layout obj, by default it will be ignored.filename: It is an optional argument, the default plot filename will be the python file name.obj: obj can be any plot that we are going to export.Software Engineering Interview Questions.Top 10 System Design Interview Questions and Answers.Top 20 Puzzles Commonly Asked During SDE Interviews.Commonly Asked Data Structure Interview Questions.Top 10 algorithms in Interview Questions.Top 20 Dynamic Programming Interview Questions.Top 20 Hashing Technique based Interview Questions.Top 50 Dynamic Programming (DP) Problems.Top 20 Greedy Algorithms Interview Questions.Top 100 DSA Interview Questions Topic-wise.Can you please let me know the variable name and where chromedriver can be found in Google Colab. If its as simple as pointing the system variable for Chromedriver to a specific location. Wd = webdriver.Chrome('chromedriver',chrome_options=chrome_options) (0,'/usr/lib/chromium-browser/chromedriver')Ĭhrome_options = webdriver.ChromeOptions()Ĭhrome_options.add_argument('-headless')Ĭhrome_options.add_argument('-no-sandbox')Ĭhrome_options.add_argument('-disable-dev-shm-usage') !cp /usr/lib/chromium-browser/chromedriver /usr/bin !apt-get update # to update ubuntu to correctly run apt install X = export_png(plt, filename=Path + '/Print my Plot.png')Īnd also tried to set options as suggested by Bryan in one of the posts. You can install the former with 'conda install -c conda-forge firefox geckodriver'. Neither firefox and geckodriver nor a variant of chromium browser and chromedriver are available on system PATH. But now the export PNG that used to work with above code throws this error I think Google Colab finally upgraded to Bokeh 2.1.1. The error is this NameError: name 'phantomjs' is not defined.Įrror was the same! I guess the phantomjs installation was the culprit. what is the output of phantomjs -version ? The error remained the same.Īre you actually able to run the phantomjs program yourself? E.g. So I tried to change the permissions as well. Permission denied: ‘/usr/local/lib/python3.6/dist-packages/phantomjs/’ In the stack of error log I also noticed this Try “conda install phantomjs” or “npm install -g phantomjs-prebuilt” RuntimeError: PhantomJS is not present in PATH or BOKEH_PHANTOMJS_PATH. After lot of searching, I tried to associate the environment variable (BOKEH_PHANTOMJS_PATH) with different combinations of /usr/local/lib/python3.6/dist-packages/phantomjs +- (/) and run the export functions. Not knowing how exactly this works, I looked up where I can find the binaries for installed files in google colab. It should be the full path to the phantomjs executable (wherever that is). I think there was a suggestion in the beginning which said try running the command in the notebook. I initially installed using !pip install phantomjs used your suggestion to !npm install -g phantomjs-prebuilt as well. A list of things not to do and things I did wrong. Just for the logs and everyone else’s sake (if they ever want to troubleshoot), will document all that I tried. But I can’t say what other differences and inconsistencies there are with standard notebooks, that might affect other things. Apparently that restriction has finally been lifted after several years, so that we can maybe make push_notebook work in the near future. push_notebook does not work on colab because colab blocks the necessary websocket APIs. I’ll just state that it’s also entirely possible that there are simply limitations on colab that are out of our control. I mean, in principle, but you would need a working Selenium and a headless webdriver to do it, and that is already the issue. Get_screenshot_as_png(plot, driver=driver, resources=INLINE)Īny workaround available to invoke from tool? Something like (untested) from selenium import webdriverįrom bokeh.io.export import get_screenshot_as_pngĭriver = webdriver.PhantomJS(executable_path="/full/path/to/phantomjs") Otherwise, all I can suggest is that you pass use the low level function with a webdriver you create and configure manually. what is the output of phantomjs -version? If that does not work, then that is the problem (but that is a problem outside Bokeh). Are you actually able to run the phantomjs program yourself? E.g. Are you sure you are giving the correct full path to the phantomjs executable binary? To be explicit, the required path ends in “phantomjs”, and is not a directory. The Python export functions use a Selenium webdriver to drive a headless browser to generate the image to save. The save tool generates a data URL directly from the HTML canvas. The SaveTool and export_png do not share anything in common.
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