Open tempfile in mode 'w' to prevent TypeError

For printing compilation errors, a NamedTemporaryFile object is opened in the default mode ('w+b'), and strings are written to it. This is not an issue in Python 2, but in Python 3, strings cannot be implicitly converted to bytes so a TypeError occurs on line 2310 (previously 2309). This commit explicitly opens the NamedTemporaryFile in mode 'w'.

Update Windows installation documentation for Anaconda.

Fix opt crash fix and  more information when verify_grad detect an error.

print_test_value in debugging tutorial

Updated numpy as np #4218

2. Fixed indentation

2. Fixed indentation

2. Fixed indentation

2. Fixed indentation

2. Fixed indentation

2. Fixed indentation

2. Fixed indentation

2. Fixed indentation

2. Fixed indentation

2. Fixed indentation

2. Fixed indentation

2. Fixed indentation

2. Fixed indentation

2. Fixed indentation

2. Fixed indentation

2. Fixed indentation

2. Fixed indentation

2. Fixed indentation

2. Fixed indentation

2. Updated numpy as np

2. Updated numpy as np

2. Updated numpy as np

2. Updated numpy as np

2. Updated numpy as np

Optimization speed up

Updated numpy as np #4218 #5640

Add automatic detection of log handlers