After you compile your code, you end up with .class files for each class in your program. These binary files are the bytecode that Java interprets to execute your program. The NoClassDefFoundError indicates that the classloader (in this case java.net.URLClassLoader), which is responsible for dynamically loading classes, cannot find the .class file for the class … Read more
The first line of the Rationale section of PEP 338 says: Python 2.4 adds the command line switch -m to allow modules to be located using the Python module namespace for execution as scripts. The motivating examples were standard library modules such as pdb and profile, and the Python 2.4 implementation is fine for this … Read more
The best way I’ve found is to run this command from terminal sudo pip install [package_name] –upgrade sudo will ask to enter your root password to confirm the action. Note: Some users may have pip3 installed instead. In that case, use sudo pip3 install [package_name] –upgrade
Tired of sys.path hacks? There are plenty of sys.path.append -hacks available, but I found an alternative way of solving the problem in hand. Summary Wrap the code into one folder (e.g. packaged_stuff) Create setup.py script where you use setuptools.setup(). (see minimal setup.py below) Pip install the package in editable state with pip install -e <myproject_folder> … Read more
Overview @Mike’s answer is correct but too imprecise. It is true that Python 3.3+ supports Implicit Namespace Packages that allows it to create a package without an __init__.py file. This is called a namespace package in contrast to a regular package which does have an __init__.py file (empty or not empty). However, creating a namespace … Read more
Not directly an answer to your question, but you should consider naming it __version__, not version. This is almost a quasi-standard. Many modules in the standard library use __version__, and this is also used in lots of 3rd-party modules, so it’s the quasi-standard. Usually, __version__ is a string, but sometimes it’s also a float or … Read more
TL;DR: You can’t do relative imports from the file you execute since __main__ module is not a part of a package. Absolute imports – import something available on sys.path Relative imports – import something relative to the current module, must be a part of a package If you’re running both variants in exactly the same … Read more
About the error code According to the Python documentation: This module makes available standard errno system symbols. The value of each symbol is the corresponding integer value. The names and descriptions are borrowed from linux/include/errno.h, which should be pretty all-inclusive. Error code 1 is defined in errno.h and means Operation not permitted. About your error … Read more
In your private npm modules add “private”: true to your package.json Then to reference the private module in another module, use this in your package.json { “name”: “myapp”, “dependencies”: { “private-repo”: “git+ssh://git@github.com:myaccount/myprivate.git#v1.0.0”, } }
Your setup.py file needs setuptools. Some Python packages used to use distutils for distribution, but most now use setuptools, a more complete package. Here is a question about the differences between them. To install setuptools on Debian: sudo apt-get install python3-setuptools For an older version of Python (Python 2.x): sudo apt-get install python-setuptools