Problems after trying this:
"To instal mitmdump follow these steps:
1. Start poweshell.(Start+R, type "powershell", press enter) [if it cannot start it, download it from the web]
2. Paste this: [Environment]::SetEnvironmentVariable("Path","$env:Path;C:\Pyth on27\;C:\Python27\Scripts\","User")
3. Press Enter.
4. Paste this: (Invoke-WebRequest
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5. Press Enter."
This will appear:
+ (Invoke-WebRequest ((((
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+ CategoriyInfo : ObjectNotFound: (Invoke-WebRequest:String) [], CommandNotFoundException
+ FullyQualifiedErrorId : CommandNotFoundException