Chapter 1. Starting on the Right Foot – Using Virtualenv
One of the great difficulties in modern software development is that of dependency management. Generally, a dependency of a software project consists of a library or component that is required for the project to function correctly. In the case of a Flask application (and more generally, that of a Python application), most dependencies are comprised of specially organized and annotated source files. Once created, these packages of source files may then be included in other projects and so forth. For some, this chain of dependencies can become an unmanageable mess, where the slightest alteration to any of the libraries in the chain can cause a cascade of incompatibilities that would bring ...
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