Renamed files and fixed Doctest (TheAlgorithms#2421)

* * Renamed files
* Fiexed doctest

* fixup! Format Python code with psf/black push

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>

Author: realDuYuanChao

conversions/binary_to_decimal renamed to conversions/binary_to_decimal.py

@@ -11,10 +11,16 @@ def bin_to_decimal(bin_string: str) -> int:
     >>> bin_to_decimal("0")
     0
     >>> bin_to_decimal("a")
+    Traceback (most recent call last):
+    ...
     ValueError: Non-binary value was passed to the function
     >>> bin_to_decimal("")
-    ValueError: Empty string value was passed to the function
+    Traceback (most recent call last):
+    ...
+    ValueError: Empty string was passed to the function
     >>> bin_to_decimal("39")
+    Traceback (most recent call last):
+    ...
     ValueError: Non-binary value was passed to the function
     """
     bin_string = str(bin_string).strip()
@@ -28,9 +34,7 @@ def bin_to_decimal(bin_string: str) -> int:
     decimal_number = 0
     for char in bin_string:
         decimal_number = 2 * decimal_number + int(char)
-    if is_negative:
-        decimal_number = -decimal_number
-    return decimal_number
+    return -decimal_number if is_negative else decimal_number
 
 
 if __name__ == "__main__":

conversions/hexadecimal_to_decimal renamed to conversions/hexadecimal_to_decimal.py

@@ -17,14 +17,20 @@ def hex_to_decimal(hex_string: str) -> int:
     >>> hex_to_decimal("-Ff")
     -255
     >>> hex_to_decimal("F-f")
+    Traceback (most recent call last):
+    ...
     ValueError: Non-hexadecimal value was passed to the function
     >>> hex_to_decimal("")
-    ValueError: Empty string value was passed to the function
+    Traceback (most recent call last):
+    ...
+    ValueError: Empty string was passed to the function
     >>> hex_to_decimal("12m")
+    Traceback (most recent call last):
+    ...
     ValueError: Non-hexadecimal value was passed to the function
     """
     hex_string = hex_string.strip().lower()
-    if not hex_string: 
+    if not hex_string:
         raise ValueError("Empty string was passed to the function")
     is_negative = hex_string[0] == "-"
     if is_negative:
@@ -34,9 +40,7 @@ def hex_to_decimal(hex_string: str) -> int:
     decimal_number = 0
     for char in hex_string:
         decimal_number = 16 * decimal_number + hex_table[char]
-    if is_negative:
-        decimal_number = -decimal_number
-    return decimal_number
+    return -decimal_number if is_negative else decimal_number
 
 
 if __name__ == "__main__":

file_transfer/tests/test_send_file.py

@@ -1,5 +1,4 @@
-from unittest.mock import patch, Mock
-
+from unittest.mock import Mock, patch
 
 from file_transfer.send_file import send_file
 

graphs/depth_first_search.py

@@ -1,6 +1,6 @@
 """Non recursive implementation of a DFS algorithm."""
 
-from typing import Set, Dict
+from typing import Dict, Set
 
 
 def depth_first_search(graph: Dict, start: str) -> Set[int]: