Created b2a-base16.md

content/python/concepts/binascii-module/terms/b2a-hex/b2a-hex.md

@@ -0,0 +1,69 @@
+---
+Title: '.b2a_hex()'
+Description: 'Converts binary data to a bytes object containing its hexadecimal (Base16) ASCII representation.'
+Subjects:
+  - 'Computer Science'
+  - 'Data Science'
+Tags:
+  - 'Encoding'
+  - 'Functions'
+  - 'Hexadecimal'
+CatalogContent:
+  - 'learn-python-3'
+  - 'paths/computer-science'
+---
+
+The **`.b2a_hex()`** function converts binary data into a bytes object containing a string of ASCII characters representing the data in Base16 (hexadecimal) format.
+
+## Syntax
+
+```pseudo
+binascii.b2a_hex(data[, sep[, bytes_per_sep=1]])
+```
+
+**Parameters:**
+
+- `data`: The binary data to convert. Must be a `bytes` or `bytearray` object.
+- `sep` (optional): A single-byte separator inserted between pairs of hex digits in the output.
+- `bytes_per_sep` (optional, default = 1): Determines how many bytes are grouped together before inserting the separator. Ignored if `sep` is not provided.
+
+**Return value:**
+
+Returns a bytes object containing the hexadecimal (Base16) ASCII representation of the input binary data.
+
+## Example: Basic Hexadecimal Conversion
+
+In this example, the binary string `"hello"` is converted to its Base16 ASCII representation:
+
+```py
+import binascii
+
+# Create binary data to encode
+binary_data = b"hello"
+
+# Encode the binary data to Base16 ASCII format
+encoded_data = binascii.b2a_hex(binary_data)
+
+print(encoded_data)
+```
+
+This produces the following output:
+
+```shell
+b'68656c6c6f'
+```
+
+> **Note**: Each byte of the input is converted to its two-character hexadecimal representation.
+
+## Codebyte Example
+
+In this example, the binary string `"Codecademy"` is converted to hexadecimal using `.b2a_hex()` to demonstrate encoding in a small, real-life scenario:
+
+```codebyte/python
+import binascii
+
+binary_data = b"Codecademy"
+encoded_data = binascii.b2a_hex(binary_data)
+
+print(encoded_data)
+```