finish python lib

utils/xgboost_fmap.h

@@ -31,7 +31,7 @@ namespace xgboost{
             /*! \brief load feature map from text format */
             inline void LoadText(FILE *fi){
                 int fid;
-                char fname[256], ftype[256];
+                char fname[1256], ftype[1256];
                 while (fscanf(fi, "%d\t%[^\t]\t%s\n", &fid, fname, ftype) == 3){
                     utils::Assert(fid == (int)names_.size(), "invalid fmap format");
                     names_.push_back(std::string(fname));

utils/xgboost_utils.h

@@ -38,6 +38,7 @@ namespace xgboost{
     namespace utils{
         inline void Error(const char *msg){
             fprintf(stderr, "Error:%s\n", msg);
+            fflush(stderr);
             exit(-1);
         }
 
@@ -57,7 +58,8 @@ namespace xgboost{
         inline FILE *FopenCheck(const char *fname, const char *flag){
             FILE *fp = fopen64(fname, flag);
             if (fp == NULL){
-                fprintf(stderr, "can not open file \"%s\"\n", fname);
+                fprintf(stderr, "can not open file \"%s\" \n", fname);
+                fflush(stderr);
                 exit(-1);
             }
             return fp;