diff -rupN Python-2.7.13/configure.ac Python-2.7.13-new/configure.ac
--- Python-2.7.13/configure.ac	2017-01-21 01:46:10.027569963 +0100
+++ Python-2.7.13-new/configure.ac	2017-01-21 01:46:10.172568415 +0100
@@ -5036,7 +5036,9 @@ MODULE_GETPATH=Modules/getpath.o
 case $host in
   *-*-mingw*)
     dnl default sys.path calculations for windows platforms
-    MODULE_GETPATH=PC/getpathp.o
+    MODULE_GETPATH=Modules/getpath.o
+    dnl "PC" is project sub-directory and we has to prepend user defined flags
+    CPPFLAGS="-I\$(srcdir)/Python -I\$(srcdir)/PC $CPPFLAGS"
     ;;
 esac
 
diff -rupN Python-2.7.13/Modules/getpath.c Python-2.7.13-new/Modules/getpath.c
--- Python-2.7.13/Modules/getpath.c	2016-12-17 21:05:07.000000000 +0100
+++ Python-2.7.13-new/Modules/getpath.c	2017-01-21 01:46:10.173568405 +0100
@@ -10,6 +10,10 @@
 #include <mach-o/dyld.h>
 #endif
 
+#ifdef MS_WINDOWS
+#include <windows.h>
+#endif
+
 /* Search in some common locations for the associated Python libraries.
  *
  * Two directories must be found, the platform independent directory
@@ -106,7 +110,11 @@
 
 static char prefix[MAXPATHLEN+1];
 static char exec_prefix[MAXPATHLEN+1];
-static char progpath[MAXPATHLEN+1];
+static char progpath[MAXPATHLEN+1]  = {'\0'};
+#ifdef MS_WINDOWS
+static char dllpath[MAXPATHLEN+1] = {'\0'};
+extern HANDLE PyWin_DLLhModule;
+#endif
 static char *module_search_path = NULL;
 static char lib_python[] = "lib/python" VERSION;
 
@@ -116,7 +124,7 @@ reduce(char *dir)
     size_t i = strlen(dir);
     while (i > 0 && dir[i] != SEP)
         --i;
-    dir[i] = '\0';
+    dir[i] = 0;
 }
 
 
@@ -187,7 +195,11 @@ static void
 joinpath(char *buffer, char *stuff)
 {
     size_t n, k;
+#ifdef MS_WINDOWS
+    if (stuff[0] == SEP || (stuff[0] != 0 && stuff[1] == ':'))
+#else
     if (stuff[0] == SEP)
+#endif
         n = 0;
     else {
         n = strlen(buffer);
@@ -208,7 +220,11 @@ joinpath(char *buffer, char *stuff)
 static void
 copy_absolute(char *path, char *p)
 {
+#ifdef MS_WINDOWS
+    if (p[0] == SEP || (p[0] != 0 && p[1] == ':'))
+#else
     if (p[0] == SEP)
+#endif
         strcpy(path, p);
     else {
         if (!getcwd(path, MAXPATHLEN)) {
@@ -228,7 +244,11 @@ absolutize(char *path)
 {
     char buffer[MAXPATHLEN + 1];
 
+#ifdef MS_WINDOWS
+    if (path[0] == SEP || (path[0] != 0 && path[1] == ':'))
+#else
     if (path[0] == SEP)
+#endif
         return;
     copy_absolute(buffer, path);
     strcpy(path, buffer);
@@ -359,6 +379,35 @@ search_for_exec_prefix(char *argv0_path,
 }
 
 
+#ifdef MS_WINDOWS
+/* Calculates dllpath and progpath, replacing \\ with / */
+int GetWindowsModulePaths()
+{
+    int result = 0;
+    char* seps;
+    result = GetModuleFileNameA(NULL, progpath, MAXPATHLEN);
+    seps = strchr(progpath, '\\');
+    while(seps) {
+        *seps = '/';
+        seps = strchr(seps, '\\');
+    }
+    dllpath[0] = '\0';
+#ifdef Py_ENABLE_SHARED
+    if (PyWin_DLLhModule) {
+        if((GetModuleFileNameA(PyWin_DLLhModule, dllpath, MAXPATHLEN) > 0)) {
+            result = 1;
+            seps = strchr(dllpath, '\\');
+            while(seps) {
+                *seps = '/';
+                seps = strchr(seps, '\\');
+            }
+        }
+    }
+#endif
+    return result;
+}
+#endif /* MS_WINDOWS */
+
 static void
 calculate_path(void)
 {
@@ -410,6 +459,10 @@ calculate_path(void)
      else if(0 == _NSGetExecutablePath(progpath, &nsexeclength) && progpath[0] == SEP)
        ;
 #endif /* __APPLE__ */
+#ifdef MS_WINDOWS
+    else if(GetWindowsModulePaths()) {
+    }
+#endif /* MS_WINDOWS */
         else if (path) {
                 while (1) {
                         char *delim = strchr(path, DELIM);
@@ -437,7 +490,11 @@ calculate_path(void)
         }
         else
                 progpath[0] = '\0';
+#ifdef MS_WINDOWS
+        if (progpath[0] != '\0' && progpath[0] != SEP && progpath[1] != ':')
+#else
         if (progpath[0] != SEP && progpath[0] != '\0')
+#endif
                 absolutize(progpath);
         strncpy(argv0_path, progpath, MAXPATHLEN);
         argv0_path[MAXPATHLEN] = '\0';
diff -rupN Python-2.7.13/Modules/posixmodule.c Python-2.7.13-new/Modules/posixmodule.c
--- Python-2.7.13/Modules/posixmodule.c	2017-01-21 01:46:05.392619449 +0100
+++ Python-2.7.13-new/Modules/posixmodule.c	2017-01-21 01:46:10.174568394 +0100
@@ -2371,7 +2371,7 @@ posix_listdir(PyObject *self, PyObject *
             Py_END_ALLOW_THREADS
             /* FindNextFile sets error to ERROR_NO_MORE_FILES if
                it got to the end of the directory. */
-            if (!result && GetLastError() != ERROR_NO_MORE_FILES) {
+            if (!result && GetLastError() != 0 && GetLastError() != ERROR_NO_MORE_FILES) {
                 Py_DECREF(d);
                 win32_error_unicode("FindNextFileW", wnamebuf);
                 FindClose(hFindFile);
@@ -2439,7 +2439,7 @@ posix_listdir(PyObject *self, PyObject *
         Py_END_ALLOW_THREADS
         /* FindNextFile sets error to ERROR_NO_MORE_FILES if
            it got to the end of the directory. */
-        if (!result && GetLastError() != ERROR_NO_MORE_FILES) {
+        if (!result && GetLastError() != 0 && GetLastError() != ERROR_NO_MORE_FILES) {
             Py_DECREF(d);
             win32_error("FindNextFile", namebuf);
             FindClose(hFindFile);