add relative import in shakespeare_char

data/shakespeare_char/prepare.py

@@ -10,12 +10,13 @@
 import numpy as np
 
 # download the tiny shakespeare dataset
-if not os.path.exists('input.txt'):
+input_file_path = os.path.join(os.path.dirname(__file__), 'input.txt')
+if not os.path.exists(input_file_path):
     data_url = 'https://raw.githubusercontent.com/karpathy/char-rnn/master/data/tinyshakespeare/input.txt'
-    with open('input.txt', 'w') as f:
+    with open(input_file_path, 'w') as f:
         f.write(requests.get(data_url).text)
 
-with open('input.txt', 'r') as f:
+with open(input_file_path, 'r') as f:
     data = f.read()
 print(f"length of dataset in characters: {len(data):,}")