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Revision as of 08:28, 8 December 2011 by hamishwillee (Talk | contribs)

Archived:Como escrever e ler configurações em um arquivo, com Python

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Por maiconherverton
Última alteração feita por hamishwillee em 08 Dec 2011


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# Ler e escrever facilmente variáveis do/no arquivo.
import codecs

path = "E:\\Python\\demo.ini"
newline = "\n"

def init_settings():
	f = codecs.open(path, 'w', 'utf_8')
	settings  = "variable_1" + newline
	settings += "variable_2" + newline
	settings += "variable_3" + newline
	f.write(settings)
	f.close()

init_settings()

def read_settings_array():
	f = codecs.open(path, 'r', 'utf8')
	settingsfile = f.read()
	settings = settingsfile.split("\n");
	f.close()
	return settings

print read_settings_array()  # <- array inteiro, ou... 


def write_setting(data,index):
	settings = read_settings_array()
	newarray=""
	for i in range(len(settings)):
		if i == index:
			settings[i] = data
		newarray += settings[i] + "\n"
	f = codecs.open(path, 'w', 'utf_8')
	f.write(newarray)
	f.close()

write_setting("FOO",2)			# <- 	Índice de atualização como você desejar

print read_settings_array()[2]  #... recupera o índice

#Para escrever no final do texto que já está em um arquivo, abri-lo em modo "append"
f=codecs.open(path, 'a', 'utf_8')
f.write("Esta linha será adicionada no final do texto existente")
f.close()
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