merge request: on windows return str and linux use cbreaker and overwrite '\n' with '\r'

.gitignore

@@ -10,3 +10,4 @@ venv/
 coverage.xml
 .eggs
 *.egg
+.idea/

readchar/readchar_linux.py

@@ -7,12 +7,14 @@
 import tty
 
 
-def readchar():
+def readchar(enter_code="\r"):
     fd = sys.stdin.fileno()
     old_settings = termios.tcgetattr(fd)
     try:
-        tty.setraw(sys.stdin.fileno())
+        tty.setcbreak(sys.stdin.fileno())
         ch = sys.stdin.read(1)
+        if ch in ('\r', '\n'):
+            ch = enter_code
     finally:
         termios.tcsetattr(fd, termios.TCSADRAIN, old_settings)
     return ch

readchar/readchar_windows.py

@@ -24,4 +24,4 @@ def readchar(blocking=False):
         msvcrt.getch()
         ch = msvcrt.getch()
 
-    return ch if sys.version_info.major > 2 else ch.decode(encoding=win_encoding)
+    return ch.decode() if sys.version_info.major > 2 else ch.decode(encoding=win_encoding)