What is a Python egg?

Note: Egg packaging has been superseded by Wheel packaging. Same concept as a .jar file in Java, it is a .zip file with some metadata files renamed .egg, for distributing code as bundles. Specifically: The Internal Structure of Python Eggs A “Python egg” is a logical structure embodying the release of a specific version of a Python project, comprising its code, … Read more

What is __init__.py for?

It used to be a required part of a package (old, pre-3.3 “regular package”, not newer 3.3+ “namespace package”). Here’s the documentation. Python defines two types of packages, regular packages and namespace packages. Regular packages are traditional packages as they existed in Python 3.2 and earlier. A regular package is typically implemented as a directory … Read more

What is __init__.py for?

It used to be a required part of a package (old, pre-3.3 “regular package”, not newer 3.3+ “namespace package”). Here’s the documentation. Python defines two types of packages, regular packages and namespace packages. Regular packages are traditional packages as they existed in Python 3.2 and earlier. A regular package is typically implemented as a directory … Read more

How can I solve “java.lang.NoClassDefFoundError”?

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 that you’re trying to use. Your code … Read more

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)