def _evaluate_env_var(cls, sequence):
"""Receives a sequence of characters and evaluates any environment
variables present on it
Args:
sequence[string]: sequence of characters to be evaluated
Returns:
sequence[string]: sequence of characters with all valid
environment variables replaced
"""
matches = cls.variable_pattern.finditer(sequence)
for match in matches:
variable_name = match.group("variable")
if any(letter.islower() for letter in variable_name):
continue
try:
variable_value = os.environ[variable_name]
except KeyError as e:
raise BadConfigurationError(e)
sequence = cls.replace_var_with_value(sequence, match.group(),
variable_value)
return sequence
def evaluate_env_var(sequence):
match = variable_pattern.search(sequence)
if not match or match.group(3).islower():
return sequence
variable_name = match.group(3)
try:
variable_value = os.environ[variable_name]
except KeyError as e:
raise BadConfigurationError(e)
return evaluate_var(sequence, variable_name, variable_value)
def _evaluate_env_var(cls, sequence):
matches = cls.variable_pattern.finditer(sequence)
for match in matches:
variable_name = match.group("variable")
if any(letter.islower() for letter in variable_name):
continue
try:
variable_value = os.environ[variable_name]
except KeyError as e:
raise BadConfigurationError(e)
sequence = cls.replace_var_with_value(sequence, match.group(),
variable_value)
return sequence
def evaluate_env_var(sequence):
matches = variable_pattern.finditer(sequence)
if not matches:
return sequence
for match in matches:
variable_name = match.group(3)
if variable_name.islower():
continue
try:
variable_value = os.environ[variable_name]
except KeyError as e:
raise BadConfigurationError(e)
sequence = evaluate_var(sequence, match.group(), variable_value)
return sequence