lib50 2.1, Windows support

setup.py

@@ -1,6 +1,3 @@
-if __import__("os").name == "nt":
-    raise RuntimeError("submit50 does not support Windows directly. Instead, you should install the Windows Subsystem for Linux (https://docs.microsoft.com/en-us/windows/wsl/install-win10) and then install submit50 within that.")
-
 from setuptools import setup
 setup(
     author="CS50",
@@ -15,7 +12,7 @@
         'submit50': [('**.py', 'python', None),],
     },
     description="This is submit50, with which you can submit solutions to problems for CS50.",
-    install_requires=["lib50>=2,<3", "requests>=2.19", "termcolor>=1.1"],
+    install_requires=["lib50>=3,<4", "requests>=2.19", "termcolor>=1.1"],
     keywords=["submit", "submit50"],
     name="submit50",
     python_requires=">=3.6",
@@ -25,6 +22,6 @@
     entry_points={
         "console_scripts": ["submit50=submit50.__main__:main"]
     },
-    version="3.0.3",
+    version="3.0.4",
     include_package_data=True
 )

submit50/__main__.py

@@ -5,6 +5,7 @@
 import logging
 import pkg_resources
 import re
+import readline
 import shutil
 import sys
 import textwrap
@@ -62,24 +63,30 @@ def cprint(text="", color=None, on_color=None, attrs=None, **kwargs):
                      color=color, on_color=on_color, attrs=attrs, **kwargs)
 
 
-def prompt(included, excluded):
+def prompt(honesty, included, excluded):
     if included:
         cprint(_("Files that will be submitted:"), "green")
         for file in included:
             cprint("./{}".format(file), "green")
     else:
         raise Error(_("No files in this directory are expected for submission."))
 
+
     # Files that won't be submitted
     if excluded:
         cprint(_("Files that won't be submitted:"), "yellow")
         for other in excluded:
             cprint("./{}".format(other), "yellow")
 
     # Prompt for honesty
+    if not honesty:
+        return True
+    honesty = _("Keeping in mind the course's policy on "
+                "academic honesty, are you sure you want to "
+                "submit these files?")
+    readline.clear_history()
     try:
-        answer = input(_("Keeping in mind the course's policy on academic honesty, "
-                         "are you sure you want to submit these files (yes/no)? "))
+        answer = input(f"{_(honesty)} ({_('yes/no')}) ")
     except EOFError:
         answer = None
         print()