Read all glass catalogs in OpticStudio

gistfile1.txt

import os


# Path to {Documents}\Zemax\Glasscat
path = r'C:\Users\David Nguyen\Documents\Zemax\Glasscat'

# Initialize return array, which will contain the glass names and vendors
allglass = []

# Loop over the files in the GLASSCAT folder
for glasscat in os.listdir(path):
    # Select files with the *.AGF extension
    if glasscat.lower().endswith('.agf'):
        # Save vendor name
        vendor = glasscat[:-4]
        
        # Read the file
        with open(os.path.join(path, glasscat)) as glasstxt:
            # Search for the lines starting with NM (contains the glass name)
            for line in glasstxt:
                if line.lower().startswith('nm'):
                    # Save the glass name
                    glassname = line[3:]
                    glassname = glassname[:glassname.find(' ')]
                    allglass.append((vendor, glassname))
        
# Display results
for glass in allglass:
    print('Vendor: ' + glass[0] + ' | Glass: ' + glass[1])