Add the full code

learning-examples/calculate_discriminator.py

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+import hashlib
+import struct
+
+# https://book.anchor-lang.com/anchor_bts/discriminator.html
+# Set the instruction name here
+instruction_name = "account:BondingCurve"
+
+def calculate_discriminator(instruction_name):
+    # Create a SHA256 hash object
+    sha = hashlib.sha256()
+    
+    # Update the hash with the instruction name
+    sha.update(instruction_name.encode('utf-8'))
+    
+    # Get the first 8 bytes of the hash
+    discriminator_bytes = sha.digest()[:8]
+    
+    # Convert the bytes to a 64-bit unsigned integer (little-endian)
+    discriminator = struct.unpack('<Q', discriminator_bytes)[0]
+    
+    return discriminator
+
+# Calculate the discriminator for the specified instruction
+discriminator = calculate_discriminator(instruction_name)
+
+print(f"Discriminator for '{instruction_name}' instruction: {discriminator}")
+
+# global:buy discriminator - 16927863322537952870
+# global:sell discriminator - 12502976635542562355
+# global:create discriminator - 8576854823835016728
+# account:BondingCurve discriminator - 6966180631402821399