Differences

This shows you the differences between two versions of the page.

--- root:pyroot_tfile [2017/06/13 09:39] – iwn
+++ root:pyroot_tfile [2017/09/05 10:37] (current) – [Handling TFile files] iwn
@@ Line 1: / Line 1: @@
-====== Handling TFiles ======
+[[root:root|Getting started with ROOT]] -> [[root:pyroot|Useful pyROOT snippets]] → [[root:pyroot_tfile|Handling TFile files]]
+====== Handling TFile files ======
+Class references for:
+  * ''[[https://root.cern.ch/doc/master/classTDirectory.html|TDirectory]]'',
+  * ''[[https://root.cern.ch/doc/master/classTFile.html|TFile]]''.
 ===== Adding a directory to a TFile =====
@@ Line 28: / Line 33: @@
 ===== gDirectory =====
-Note that ''gDirectory'' is the current directory containing all newly created saved objects, or those saved to this directory. If you just opened a file, this will be your current directory until you close it or use ''cd()''. Test the behavior:
+Note that ''gDirectory'' is the current directory containing all newly created saved objects, or those saved to this directory. If you just opened a file, this will be your current directory until you close it or use ''cd()'' on some ''TDirectory'' or other ''TFile''. Test the behavior with this macro:
 <file python gDirectory.py>
@@ Line 44: / Line 49: @@
 printGDirectory()
-print ">>> creating some file with some contents"
+print ">>> creating a file with some contents"
 file = TFile("test.root","recreate")
 tree = TTree("tree","tree")
@@ Line 63: / Line 68: @@
 printGDirectory()
 </file>

CMS Wiki Pages