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1. If you don't have an account, please self register at https://apps.ecmwf.int/registration/ and then go to the steps below.

2. Login https://apps.ecmwf.int/auth/login/

3. Retrieve you key at https://api.ecmwf.int/v1/key/

   Info
   Note that the key expires in 1 year. You will receive an email to the registered email address 1 month before the expiration date with the renewal instructions.

4. Copy the information in this page and paste it in the file $HOME/.ecmwfapirc (Unix/Linux) or %USERPROFILE%\.ecmwfapirc (Windows; see how to create a file with a leading dot)
   

{
    "url"   : "https://api.ecmwf.int/v1",
    "key"   : "XXXXXXXXXXXXXXXXXXXXXX",
    "email" : "john.smith@example.com"
}

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python python

You can install the ecmwfapi python library by running on Unix/Linux:

sudo pip install https://software.ecmwf.int/wiki/download/attachments/56664858/ecmwf-api-client-python.tgz

or on Windows:

pip install https://software.ecmwf.int/wiki/download/attachments/56664858/ecmwf-api-client-python.tgz

If you cannot run the sudo or pip commands, just download the ecmwf-api-client-python.tgz. Extract its content and copy the module ecmwfapi to a directory pointed by the environment variable PYTHONPATH.