I have an environment.yml like
channels:
- defaults
dependencies:
- flask
- gunicorn = 0.22.0
- pandas=0.21.1
- pip
- pip:
- six==1.14.0
- requests ==2.21.0
- pytz
I want to get all python packages in an array.
packagesArray=("flask" "gunicorn" "pandas" "pip" "six" "requests" "pytz" )
How can we do that?
One way using yq, a handy front end that converts YAML to JSON and then feeds it to jq:
readarray -t packagesArray < <(yq -r '.dependencies | .. | select(type == "string") | sub("=.*";"")' environment.yaml)
After this, declare -p packagesArray will show
declare -a packagesArray=([0]="flask" [1]="gunicorn " [2]="pandas" [3]="pip" [4]="six" [5]="requests " [6]="pytz")
you can try something like the below in python3:
#!/usr/bin/env python3
import yaml
def read_yaml(filename):
try:
with open(filename, 'r') as file:
data_yml = yaml.safe_load(file)
return data_yml
except BaseException as e:
msg = 'Yaml File: ' + str(e)
print(msg)
data = read_yaml('environment.yml')
for key, value in data.items():
print(f"\nkey - {key}\nvalue - {value}\n")
if you still want to use bash then check out the below link:
