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HF Login Snippet.py

@@ -0,0 +1,51 @@
+#import required functions
+from huggingface_hub import login, get_token, whoami
+import os
+
+#define clear screen function (OPTIONAL)
+oname = os.name
+if oname == 'nt':
+    osclear = 'cls'
+elif oname == 'posix':
+    osclear = 'clear'
+else:
+    osclear = ''
+def clear_screen():
+    os.system(osclear)
+
+#get token
+if get_token() is not None:
+    #if the token is found in either HF_TOKEN or cli login then log in:
+    login(get_token())
+    tfound = 'true' #remove if lines 27-34 removed
+else:
+    #if the token is not found then prompt user to provide it:
+    login(input("API token not detected. Enter your HuggingFace (WRITE) token: ")) # can remove "(WRITE)" if not required
+    tfound = 'false' #remove if lines 27-34 removed
+
+#if the token is read only then prompt user to provide a write token (Only required if user needs a WRITE token, remove if READ is enough):
+while True:
+    if whoami().get('auth', {}).get('accessToken', {}).get('role', None) != 'write':
+        clear_screen()
+        if os.environ.get('HF_TOKEN', None) is not None: #if environ finds HF_TOKEN as write then display following text and exit:
+            print(f'''
+          You have the environment variable HF_TOKEN set.
+          You cannot log in.
+          Either set the environment variable to a (WRITE) token or remove it.
+          ''')
+            input("Press enter to continue.")
+            exit()
+        print("You do not have write access to this repository. Please use a valid token with (WRITE) access.")
+        login(input("Enter your HuggingFace (WRITE) token: "))
+        continue
+    break
+
+#if token wasn't found at first then print the name of the new logged in user (OPTIONAL)
+if tfound == 'false':
+    print(f'''
+          You are now logged in as {whoami().get('fullname', None)}.
+          
+          To logout, use the hf command line interface 'huggingface-cli logout'
+          To view your active account, use 'huggingface-cli whoami'
+          ''')
+