import math as m imports the math module under the alias m. from math import sqrt, cos imports the selected functions of the module math.Ĥ. Now we don't need to specify the module to use functions of this module.ģ. from math import * loads the module math. Then you can use any function defined in math module using math.function. There are several ways to load package or module in Python :ġ. In other words, it is required to import package once installed. Once package is installed, next step is to make the package in use. Python -m pip install "Packagename>=1.3" # version greater than or equal to 1.3 You can have multiple python versions installed at the same time and you can create virtual environments with the needed version. Python -m pip install Packagename=1.3 # specific version Install Specific Versions of Python Package Python -m pip install package-name python -m pip tells python to import a module for you, then run it as a script. To workaround this issue, run the command line below in command prompt. Some users face error "Synta圎rror: invalid syntax" in installing packages. Syntax Error : Installing Package using PIP The ! prefix tells Python to run a shell command. Make sure to use ! before pip when you enter the command below in IPython console window. Method 3 : Install Python Package from IPython console Search for folder named Scripts where pip applications are stored.įor example, folder location is C:\Users\DELL\Python37\Scripts so you need to enter the following line in command prompt : Add the following lines: echo 'eval "$(pyenv init -path)"' > ~/.zprofileĮcho 'eval "$(pyenv init -)"' > ~/.3. Open Terminal, then type in: brew install openssl readline sqlite3 xz zlibįinally, update the shell profile configuration, i.e ~/.zshrc if your default shell is ZSH. To make pyenv work, install build dependencies through Homebrew. The Homebrew Python documentation recommends pyenv to manage Python environments. You lose control over “site-packages” and all the PIP packages that you had installed might become inaccessible.
For example, the "youtube-dl" package uses Python as its dependency, the Python package may get updated as and when needed. Many people prefer to use Homebrew to install software packages, but should you use it for Python development? The problem with using Homebrew Python is that it’s not in your control. If you’re working on multiple Python projects, the default location, which needs sudo privileges, creates hurdles.
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