All of this put together means we would have to write a never-ending stream of modules to handle the combinatorics of data, strategies, and operations.
Also, there are many different strategies and operations that we might need to perform. There are many different data files based on data frequencies, so we may need to create and maintain a growing collection of modules for the conversion between the various data frequencies. Suppose we want to design a package (a collection of modules) for the uniform handling of various trading strategies and their data.
CONDA INSTALL PACKAGE RENAME CODE
You can import these packages in your code using the following syntax. You will have access to some in-built packages such as Pandas, NumPy by default when you installed Python. The Python developers community make their codes available for others in the form of packages under the open source license. Importing Python packagesĪs we know Python is an open-source project. Packaging modules in such a way saves the author of different modules from having to worryĪbout each other’s global variable names and the use of dotted module names saves the author of multi-module packages from having to worry about each other’s module names. For example, the module name matplotlib.pyplot designates a submodule named pyplot in a package named matplotlib. It is a way of structuring Python’s module namespace by using "dotted module names". Packages can be considered as a collection of modules. Such a file is called a module definitions from a module can be imported into other modules or in the program that we code. To support this, Python has a way to put a code definition in a file and use them in another script or directly in an interactive instance of the interpreter. Also, we may want to use a handy function that we have written in several programs without copying its definition into each program. This is known as writing a script.Īs a program gets longer, we may want it to split it into several small files for easier maintenance. Therefore, in order to write a longer program, we might consider switching to a text editor to prepare an input for the interpreter and running it with that file as an input instead. The definitions that we create(functions and variables) will be lost if we quit the console and enter it again.
Thus, you can get a simple code for performing simple arithmetic operations or a group of code, called modules and packages, which can help perform data analysis, all on the internet. The beauty of Python is that we have a collection of modules and packages which have been created for a certain purpose and the fact that it is open-source makes it incredibly easy for one individual to build on top of another person’s work and create something useful.
CONDA INSTALL PACKAGE RENAME HOW TO
Before we start with the tutorial on how to install Python packages, let us take a step back and understand the role packages play in the Python ecosystem.
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