[ci][Python] Show full stderr when testing tutorials with Pytest

.github/workflows/python_wheel_build.yml

@@ -72,7 +72,7 @@ jobs:
 
       - name: Run tutorials
         run: |
-          pytest -vv -s -rF --show-capture=all test/wheels
+          pytest -vv --verbosity="4" -rF test/wheels
 
   create-and-upload-wheel-registry:
       if: github.event_name != 'pull_request' # The secrets are not available in PR

tutorials/analysis/dataframe/df000_simple.C

@@ -19,7 +19,7 @@ void df000_simple()
    ROOT::RDataFrame rdf(100);
 
    // Define a new column `x` that contains random numbers
-   auto rdf_x = rdf.Define("x", [](){ return gRandom->Rndm(); });
+   auto rdf_x = rdf.Define("x", [](){ return; });
 
    // Create a histogram from `x`
    auto h = rdf_x.Histo1D("x");

tutorials/analysis/dataframe/df000_simple.py

@@ -19,7 +19,7 @@
 rdf = ROOT.RDataFrame(100)
 
 # Define a new column `x` that contains random numbers
-rdf_x = rdf.Define("x", "gRandom->Rndm()")
+rdf_x = rdf.Define("x", 42)
 
 # Create a histogram from `x` and draw it
 h = rdf_x.Histo1D("x")