As it currently stands, you are trying to concatenate a string with a list in your final print statement, which will throw TypeError. Instead, alter your last print statement to one of the following:
I’m debugging a simple program, that has worked in the past. I’ve singled out the instruction where the error takes place, but I cannot figure out what triggers it. I’ve read all questions related to WinError 10061, but I do not see a clear answer I run Python 3 in Windows 8. I tried turning … Read more
I have windows 10 (64 bit). I want to utilize the Openpyxl package to start learning how to interact with excel and other spreadsheets. I installed Python with “windowsx86-64web-basedinstaller” I have a 64 bit OS, was I mistaken when trying to install this version?
Your code seems right, this is running for me on Windows 7 (Python 3.6): resulting in this tkinter GUI: with this image as bll.jpg: (imgur converted it to bll.png but this is working for me as well.) More options: This answer mentions, tkinter is working only with gif images. Try using a .gif image. If this is not working, use PIL as stated in this answer. … Read more
Your error is happening because Object is a module, not a class. So your inheritance is screwy. Change your import statement to: and your class definition to: or change your class definition to:
One of the neat features of Python lists is that you can index from the end of the list. You can do this by passing a negative number to []. It essentially treats len(array) as the 0th index. So, if you wanted the last element in array, you would call array[-1]. All your return c.most_common()[-1] statement does is call c.most_common and return the last … Read more
Use json.dumps() instead. json.dump() needs a file object and dump JSON to it.
RGB->gray conversion actually isn’t an average — different channels are weighed differently. Specifically: This is also mentioned in the documentation. Thus, it’s expected that RGB2GRAY and BGR2GRAY give different results. Regarding the discrepancy between sum-then-divide and divide-then-sum approaches, i.e. between and Recall that cv2.imread returns a uint8 numpy array. Thus, the latter operation (where all channels are combined … Read more
You can’t pip install csv because the csv module is included in the Python installation. You can directly use : in your program Thanks
In python, the following will let us write to stdout: However, I want to be flexible about which stream we print to. I want to pass the stream as an argument into a function, as you would when calling fprintf in any of C derived languages. In the snippet of source code above, stdout is … Read more