🔒 Why does this print 'None'?

[uneven kernel]

i'm trying to use pyyaml to parse a YML file, but it returns none

import yaml
file = open('items.yml', 'r')
print(file.read())
item_database = yaml.safe_load(file)
print(item_database)

and the YML:

materials:
    iron:
        difficulty: 1.5
        melting_point: 1300
        molten_variant: 'molten'
        boiling_point: 2800
        vapour_variant: 'vapour'
        corrosive: false
        radioactive: false
        half_life: -1
        variants:
            ore:
                replaces: 'iron_ore'
                tags:
                    - 'is_raw'
                    - 'is_ore'
                    - 'is_solid'
                    - 'is_metal'
            ingot:
                replaces: 'iron_ingot'
                tags:
                    - 'is_forged'
                    - 'is_solid'
                    - 'is_metal'
                    
            molten:
                replaces: 'lava_bucket'
                tags:
                    - 'is_liquid'
                    - 'is_metal'
            
            plate:
                replaces: 'bowl'
                tags:
                    - 'is_liquid'
                    - 'is_metal'
                    - 'is_plate'

[ionic pine]

@uneven kernel

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[uneven kernel]

i expect the code to return a dict inteh form that the YML takes

[bold flame]

your file.read has "exhausted" the file.

[uneven kernel]

'exhausted'?

[bold flame]

ya watch

comment out the print

import yaml

file = open("/tmp/items.yml")
# print(file.read())
item_database = yaml.safe_load(file)
print(item_database)

now we see ```py

{'materials': {'iron': {'difficulty': 1.5, 'melting_point': 1300, 'molten_variant': 'molten', 'boiling_point': 2800, 'vapour_variant': 'vapour', 'corrosive': False, 'radioactive': False, 'half_life': -1, 'variants': {'ore': {'replaces': 'iron_ore', 'tags': ['is_raw', 'is_ore', 'is_solid', 'is_metal']}, 'ingot': {'replaces': 'iron_ingot', 'tags': ['is_forged', 'is_solid', 'is_metal']}, 'molten': {'replaces': 'lava_bucket', 'tags': ['is_liquid', 'is_metal']}, 'plate': {'replaces': 'bowl', 'tags': ['is_liquid', 'is_metal', 'is_plate']}}}}}

[uneven kernel]

i just have and it works, why is this the case?

[bold flame]

an open file is like an old-school reel-to-reel tape player!
Reading the file plays the tape

you have to rewind it to use it again

[uneven kernel]

k fair

ill keep that in mind

thanks

!close

[ionic pine]

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