Fix Windows support

trains/binding/environ_bind.py

@@ -43,14 +43,17 @@ class PatchOsFork(object):
 
     @classmethod
     def patch_fork(cls):
-        # only once
-        if cls._original_fork:
-            return
-        if six.PY2:
-            cls._original_fork = staticmethod(os.fork)
-        else:
-            cls._original_fork = os.fork
-        os.fork = cls._patched_fork
+        try:
+            # only once
+            if cls._original_fork:
+                return
+            if six.PY2:
+                cls._original_fork = staticmethod(os.fork)
+            else:
+                cls._original_fork = os.fork
+            os.fork = cls._patched_fork
+        except Exception:
+            pass
 
     @staticmethod
     def _patched_fork(*args, **kwargs):
@@ -72,7 +75,7 @@ class PatchOsFork(object):
                     return os._org_exit(*args, **kwargs)
 
                 if not hasattr(os, '_org_exit'):
-                   os._org_exit = os._exit
+                    os._org_exit = os._exit
                 os._exit = _at_exit_callback
 
         return ret

trains/task.py

@@ -1,5 +1,6 @@
 import atexit
 import os
+import re
 import signal
 import sys
 import threading
@@ -9,6 +10,7 @@ from collections import OrderedDict, Callable
 
 import psutil
 import six
+from pathlib2 import Path
 
 from .binding.joblib_bind import PatchedJoblib
 from .backend_api.services import tasks, projects
@@ -334,21 +336,18 @@ class Task(_Task):
             result = ScriptInfo.get(create_requirements=False, check_uncommitted=False)
             if result:
                 if not default_project_name:
-                    # noinspection PyBroadException
                     try:
-                        parts = result.script['repository'].split('/')
-                        default_project_name = (parts[-1] or parts[-2]).replace('.git', '') or 'Untitled'
-                    except Exception:
+                        default_project_name = re.sub(r"\.git$", "", result.script.get('repository')) or "Untitled"
+                    except TypeError:
                         default_project_name = 'Untitled'
                 if not default_task_name:
-                    # noinspection PyBroadException
                     try:
-                        default_task_name = os.path.splitext(os.path.basename(result.script['entry_point']))[0]
-                    except Exception:
+                        default_task_name = Path(result.script.get("entry_point")).stem
+                    except TypeError:
                         pass
 
         # if we force no task reuse from os environment
-        if DEV_TASK_NO_REUSE.get() or reuse_last_task_id:
+        if DEV_TASK_NO_REUSE.get() or not reuse_last_task_id:
             default_task = None
         else:
             # if we have a previous session to use, get the task id from it