I made my own script for this. Feel free to use it, as long as you keep the attribution. The script can parse yaml from a file [function load], parse yaml from a string [function loads] and convert a dictionary into yaml [function dumps]. It respects all variable types.
# © didlly AGPL-3.0 License - github.com/didlly
def is_float[string: str] -> bool:
try:
float[string]
return True
except ValueError:
return False
def is_integer[string: str] -> bool:
try:
int[string]
return True
except ValueError:
return False
def load[path: str] -> dict:
with open[path, "r"] as yaml:
levels = []
data = {}
indentation_str = ""
for line in yaml.readlines[]:
if line.replace[line.lstrip[], ""] != "" and indentation_str == "":
indentation_str = line.replace[line.lstrip[], ""].rstrip["\n"]
if line.strip[] == "":
continue
elif line.rstrip[][-1] == ":":
key = line.strip[][:-1]
quoteless = [
is_float[key]
or is_integer[key]
or key == "True"
or key == "False"
or ["[" in key and "]" in key]
]
if len[line.replace[line.strip[], ""]] // 2 < len[levels]:
if quoteless:
levels[len[line.replace[line.strip[], ""]] // 2] = f"[{key}]"
else:
levels[len[line.replace[line.strip[], ""]] // 2] = f"['{key}']"
else:
if quoteless:
levels.append[f"[{line.strip[][:-1]}]"]
else:
levels.append[f"['{line.strip[][:-1]}']"]
if quoteless:
exec[
f"data{''.join[str[i] for i in levels[:line.replace[line.lstrip[], ''].count[indentation_str] if indentation_str != '' else 0]]}[{key}]"
+ " = {}"
]
else:
exec[
f"data{''.join[str[i] for i in levels[:line.replace[line.lstrip[], ''].count[indentation_str] if indentation_str != '' else 0]]}['{key}']"
+ " = {}"
]
continue
key = line.split[":"][0].strip[]
value = ":".join[line.split[":"][1:]].strip[]
if [
is_float[value]
or is_integer[value]
or value == "True"
or value == "False"
or ["[" in value and "]" in value]
]:
if [
is_float[key]
or is_integer[key]
or key == "True"
or key == "False"
or ["[" in key and "]" in key]
]:
exec[
f"data{'' if line == line.strip[] else ''.join[str[i] for i in levels[:line.replace[line.lstrip[], ''].count[indentation_str] if indentation_str != '' else 0]]}[{key}] = {value}"
]
else:
exec[
f"data{'' if line == line.strip[] else ''.join[str[i] for i in levels[:line.replace[line.lstrip[], ''].count[indentation_str] if indentation_str != '' else 0]]}['{key}'] = {value}"
]
else:
if [
is_float[key]
or is_integer[key]
or key == "True"
or key == "False"
or ["[" in key and "]" in key]
]:
exec[
f"data{'' if line == line.strip[] else ''.join[str[i] for i in levels[:line.replace[line.lstrip[], ''].count[indentation_str] if indentation_str != '' else 0]]}[{key}] = '{value}'"
]
else:
exec[
f"data{'' if line == line.strip[] else ''.join[str[i] for i in levels[:line.replace[line.lstrip[], ''].count[indentation_str] if indentation_str != '' else 0]]}['{key}'] = '{value}'"
]
return data
def loads[yaml: str] -> dict:
levels = []
data = {}
indentation_str = ""
for line in yaml.split["\n"]:
if line.replace[line.lstrip[], ""] != "" and indentation_str == "":
indentation_str = line.replace[line.lstrip[], ""]
if line.strip[] == "":
continue
elif line.rstrip[][-1] == ":":
key = line.strip[][:-1]
quoteless = [
is_float[key]
or is_integer[key]
or key == "True"
or key == "False"
or ["[" in key and "]" in key]
]
if len[line.replace[line.strip[], ""]] // 2 < len[levels]:
if quoteless:
levels[len[line.replace[line.strip[], ""]] // 2] = f"[{key}]"
else:
levels[len[line.replace[line.strip[], ""]] // 2] = f"['{key}']"
else:
if quoteless:
levels.append[f"[{line.strip[][:-1]}]"]
else:
levels.append[f"['{line.strip[][:-1]}']"]
if quoteless:
exec[
f"data{''.join[str[i] for i in levels[:line.replace[line.lstrip[], ''].count[indentation_str] if indentation_str != '' else 0]]}[{key}]"
+ " = {}"
]
else:
exec[
f"data{''.join[str[i] for i in levels[:line.replace[line.lstrip[], ''].count[indentation_str] if indentation_str != '' else 0]]}['{key}']"
+ " = {}"
]
continue
key = line.split[":"][0].strip[]
value = ":".join[line.split[":"][1:]].strip[]
if [
is_float[value]
or is_integer[value]
or value == "True"
or value == "False"
or ["[" in value and "]" in value]
]:
if [
is_float[key]
or is_integer[key]
or key == "True"
or key == "False"
or ["[" in key and "]" in key]
]:
exec[
f"data{'' if line == line.strip[] else ''.join[str[i] for i in levels[:line.replace[line.lstrip[], ''].count[indentation_str] if indentation_str != '' else 0]]}[{key}] = {value}"
]
else:
exec[
f"data{'' if line == line.strip[] else ''.join[str[i] for i in levels[:line.replace[line.lstrip[], ''].count[indentation_str] if indentation_str != '' else 0]]}['{key}'] = {value}"
]
else:
if [
is_float[key]
or is_integer[key]
or key == "True"
or key == "False"
or ["[" in key and "]" in key]
]:
exec[
f"data{'' if line == line.strip[] else ''.join[str[i] for i in levels[:line.replace[line.lstrip[], ''].count[indentation_str] if indentation_str != '' else 0]]}[{key}] = '{value}'"
]
else:
exec[
f"data{'' if line == line.strip[] else ''.join[str[i] for i in levels[:line.replace[line.lstrip[], ''].count[indentation_str] if indentation_str != '' else 0]]}['{key}'] = '{value}'"
]
return data
def dumps[yaml: dict, indent=""] -> str:
"""A procedure which converts the dictionary passed to the procedure into it's yaml equivalent.
Args:
yaml [dict]: The dictionary to be converted.
Returns:
data [str]: The dictionary in yaml form.
"""
data = ""
for key in yaml.keys[]:
if type[yaml[key]] == dict:
data += f"\n{indent}{key}:\n"
data += dumps[yaml[key], f"{indent} "]
else:
data += f"{indent}{key}: {yaml[key]}\n"
return data
print[load["config.yml"]]
Example
config.yml
level 0 value: 0
level 1:
level 1 value: 1
level 2:
level 2 value: 2
level 1 2:
level 1 2 value: 1 2
level 2 2:
level 2 2 value: 2 2
Output
{'level 0 value': 0, 'level 1': {'level 1 value': 1, 'level 2': {'level 2 value': 2}}, 'level 1 2': {'level 1 2 value': '1 2', 'level 2 2': {'level 2 2 value': 2 2}}}