# To see if a specific package, such as SciPy, is available for installation:
conda search scipy

# To see if a specific package, such as SciPy, is available for installation from Anaconda.org:
conda search --override-channels --channel defaults scipy

# To see if a specific package, such as iminuit, exists in a specific channel, such as http://conda.anaconda.org/mutirri, and is available for installation:
conda search --override-channels --channel http://conda.anaconda.org/mutirri iminuit