8000 [Bug]: crwl -b fail · Issue #1088 · unclecode/crawl4ai · GitHub
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[Bug]: crwl -b fail #1088

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lisuwei opened this issue May 9, 2025 · 2 comments
Open

[Bug]: crwl -b fail #1088

lisuwei opened this issue May 9, 2025 · 2 comments
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💪 - Beginner Difficulty level - Beginners 🥸 - Medium Priority - Medium 🐞 Bug Something isn't working 📌 Root caused identified the root cause of bug

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@lisuwei
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lisuwei commented May 9, 2025 •
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crawl4ai version

0.6.1

Expected Behavior

Crawl4AI CLI work using -b parameter

Current Behavior

Image

Image

Is this reproducible?

Yes

Inputs Causing the Bug



Steps to Reproduce




Code snippets




OS


windows


Python version


Python 3.12.6


Browser


No response


Browser version


No response


Error logs & Screenshots (if applicable)


No response

      		
    

      
  





        



            
            

              
            

        

      


      
    








      

    



      

  
            

    

      
    

    


      

          @lisuwei
lisuwei




            added
      

  🐞 Bug

  Something isn't working

      

  🩺 Needs Triage

  Needs attention of maintainers

  labels


      May 9, 2025

    

  








      

  
      



  

  @aravindkarnam





  


    

      

  

    

        
    
    

  


      
          
  
      
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Root cause


Looking at the code, there are two options both using -b as their shorthand:


@click.option("--browser", "-b", ...)
@click.option("--bypass-cache", "-b", is_flag=True, ...)


When Click sees -b, it can't tell which one you mean. Since --bypass-cache is a flag that doesn't take a value, it treats everything after -b as an unexpected argument.


Suggestions


Change one of the shorthands to something else:


# Either this:
@click.option("--bypass-cache", "-bc", is_flag=True, ...)

# Or this:
@click.option("--browser", "-br", ...)

      		
    

  





        


            

            
            

              
            

        

      


      

            
  

    
  
    
    

  

  


    












      

  
      



  

  @aravindkarnam





  


    

      

  

    

        
    
    

  


      
          
  
      
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@lisuwei As you can see the error is result of a conflicting shorthand "-b" between "--browser" and "--bypass-cache". We'll fix it in the next release. In the meantime use the full form.


crwl https://example.com --browser "headless=true,viewport_width=1280,user_agent_mode=random"

      		
    

  





        


            

            
            

              
            

        

      


      

            
  

    
  
    
    

  

  


    












      

  
            

    

      
    

    


      

          @aravindkarnam
aravindkarnam




            added
      

  💪 - Beginner

  Difficulty level - Beginners

      

  📌 Root caused

  identified the root cause of bug

      

  🥸 - Medium

  Priority - Medium

    and removed
      

  🩺 Needs Triage

  Needs attention of maintainers

  labels


      May 12, 2025

    

  












  
  

    

      

  





  




  
  

              

  
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    💪 - Beginner

  Difficulty level - Beginners
  

    🥸 - Medium

  Priority - Medium
  

    🐞 Bug

  Something isn't working
  

    📌 Root caused

  identified the root cause of bug








      

  

    

        

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          @aravindkarnam 
    

  






    

    




    






  

          

        



    



  





    

  


  


          



    



  

    

    

    





    


    

    

  



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