I have the Anaconda distribution of Python installed on my Windows 10 machine at work. I’m currently using Python 3. There are multiple ways to create an environment, which include using virtualenv or venv (built into the Python 3 standard library), but my favorite method (with the least hassle in my opinion) is using conda, the package manager associated with Anaconda.. Before moving further, make sure you have Anaconda already installed. Switching between Python 2 and Python 3 environments¶ You can easily maintain separate environments for Python 2 programs and Python 3 programs on the same computer, without worrying about the programs interacting with each other. We do this with the conda create command. 假設我們要建立一個叫做myenv的虛擬環境，並且是安裝python 3.5的版本，那我們可以鍵入下面的命令。 conda create --name myenv python=3.5 Current Behavior. If you have multiple versions of Python on your system, you can select a specific Python version by running python3 or whichever version you want.. To create a virtual environment, decide … The Create new environment dialog box appears. Let’s create another environment named py27 that’s Legacy Python (i.e., Python 2). We pass in the --name or -n flag to give a name to the new environment. conda create --name subscribe python=3.6 Keep in mind that you will need to install additional packages inside that environment once you activate (enter) that environment. $ conda search "^python$" # you should see a list of python versions, including python2.X and python3.X. If you want to use a different version of Python, for example Python 3.5, simply create a new environment and specify the version of Python that you want. Now, let us create a virtual environment with conda. Creating A New Environment — Step 3. Steps to Reproduce (base) C:\>conda create --name py2 python=2.7 Collecting package metadata (current_repodata.json): done Solving environment: failed with repodata from current_repodata.json, will retry with next repodata source. 12.2. Switching to an environment is called activating it. Each virtual environment has its own Python binary (which matches the version of the binary that was used to create this environment) and can have its own independent set of installed Python packages in its site directories. You can create a new environment with the following command. Unable to install a python 2.7 environment using fresh installed Anaconda3-2020.07-Windows-x86_64.exe. Creating an environment. The module used to create and manage virtual environments is called venv. The packages you have in your root environment are not necessarily the ones you will have in your new environment unless you install them. We can also pass in python=2.7 to put Python 2.7 in this environment. use the following command to create a virtual environment for a python version you specified, replace x.x with the Python … How can we create a Python virtual environment? Creating a Python 3.5 environment from Anaconda2 or Anaconda3¶ In Navigator, click the Environments tab, then click the Create button. In the Environment name field, type a descriptive name for your environment. (base) $ python --version Python 3.7.6. The venv module provides support for creating lightweight “virtual environments” with their own site directories, optionally isolated from system site directories. When you install Anaconda, it comes with the very useful Anaconda Prompt.Using the Anaconda Prompt is a bit like using the terminal on a Mac OSX or Linux. venv will usually install the most recent version of Python that you have available. Creating Virtual Environments¶. 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