Web Applications with Flask Tutorial: Help Requested


I am following the tutorial How to Make A Web Application using Flask ( but I’ve encountered a problem. I am using nano and Python 3 in Windows PowerShell after installation and environment set up as explained in another article linked to the prerequisites of this one but I have run into instances in which commands are not supported by Windows PowerShell like “source” and “export”. I was able to work around the source command and activate my environment similar to how it was explained in the other article I am referring to but didn’t have much luck trying to work around the export command. Is the article using a different shell and that’s the reason I am having these issues? Am I missing something? Is there a way around these issues? I haven’t continued reading but I imagine it will be an issue throughout the article if I am doing something incorrectly.

Thanks in advance.

Regards, Rafael

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Hi there @RAMartinezR,

For PowerShell the equivelent of export would look like this:

> $env:FLASK_APP = "hello"

For more information you could take a look at the official Flask CLI documentation here:

Let me know how it goes! Regards, Bobby