TypeError: ‘NoneType’ object is not iterable in Python
It means the value of data is None.
Relative imports – ModuleNotFoundError: No module named x
As was stated in the comments to the original post, this seemed to be an issue with the python interpreter I was using for whatever reason, and not something wrong with the python scripts. I switched over from the WinPython bundle to the official python 3.6 from python.org and it worked just fine. thanks for … Read more
How to uninstall Eclipse?
There is no automated uninstaller. You have to remove Eclipse manually by deleting some directories and files. Note: I use Unix style paths in this answer but the locations should be the same on Windows or Unix systems, so ~ refers to the user home directory even on Windows. Why is there no uninstaller? According to this discussion … Read more
JavaScript sleep/wait before continuing [duplicate]
JS does not have a sleep function, it has setTimeout() or setInterval() functions. If you can move the code that you need to run after the pause into the setTimeout() callback, you can do something like this: see example here : http://jsfiddle.net/9LZQp/ This won’t halt the execution of your script, but due to the fact that setTimeout() is an asynchronous function, this code will … Read more
Python: ‘ModuleNotFoundError’ when trying to import module from imported package
FIRST, if you want to be able to access man1.py from man1test.py AND manModules.py from man1.py, you need to properly setup your files as packages and modules. Packages are a way of structuring Python’s module namespace by using “dotted module names”. For example, the module name A.B designates a submodule named B in a package named A. … When importing the package, Python searches through the directories on sys.path looking … Read more
What is localhost 3000?
To make you understand this you should understand that you need a web server to host the application to run on the web. Then it will be available for most of the people. But that application needs to be developed somewhere. In this case you need a local server. There are several local server instances … Read more
What is the difference between lock, mutex and semaphore?
A lock allows only one thread to enter the part that’s locked and the lock is not shared with any other processes. A mutex is the same as a lock but it can be system wide (shared by multiple processes). A semaphore does the same as a mutex but allows x number of threads to enter, this … Read more
Arduino Sketch upload issue – avrdude: stk500_recv(): programmer is not responding
I had this problem with a Crowduino, running the Arduino IDE on OS X. The solution for me was to switch on verbose output during upload (in the Arduino IDE preferences pane). Then, when uploading, you can see AVRDUDE sending three packets avrdude: Send: 0 [30] [20] (with corresponding RX flashes on the board) right before the avrdude: ser_recv(): programmer is … Read more
bash: pip: command not found
Why not just do sudo easy_install pip or if this is for python 2.6 sudo easy_install-2.6 pip? This installs pip using the default python package installer system and saves you the hassle of manual set-up all at the same time. This will allow you to then run the pip command for python package installation as it will be installed with … Read more
TypeError: ‘NoneType’ object is not iterable in Python
It means the value of data is None.