python 檔案讀寫總結

這是個人在專案中抽取的**，自己寫的utils的通用模組，使用的框架是tronado，包括了檔案的讀寫操作，api格式的統一函式，如有特別需要可以聯絡我或者自己擴充套件，剛學python不久，僅供參考，例子如下。

import

time
import
json
import
logging
import
traceback
import
codecs
import
osconf_log =logging
def resp_dict(data='', status="
success
", message="
successful"):
"""return a dict format response
"""return dict(status=status, message=message, data=data, timestamp=time.time())
defread_json(filename):
#load data from file
content =
try:
conf_log.info(
"reading input from file: 
" +str(filename))
ifos.path.exists(filename):
with open(filename, "r
") as fp:
content =json.load(fp)
else
: conf_log.warning(
"file %s does not exist.
" %filename)
except
exception as e:
conf_log.error(e)
ex_str =traceback.format_exc()
conf_log.error(ex_str)
return
content
defread_json_config(filename, def_res):
#load data from file
content =def_res
try:
conf_log.info(
"reading input from file: 
" +str(filename))
ifos.path.exists(filename):
with open(filename, "r
") as fp:
content =json.load(fp)
else
: conf_log.warning(
"file %s does not exist.
" %filename)
except
exception as e:
conf_log.error(e)
ex_str =traceback.format_exc()
conf_log.error(ex_str)
return
content
defwrite_json(j_dict, file_name):
#dump data into file
try:
conf_log.info(
"writing file: 
" +str(file_name))
with codecs.open(file_name, "w
", "
utf-8
") as outputfile:
json.dump(j_dict, outputfile, ensure_ascii=false, encoding="
utf-8")
except
exception as e:
conf_log.error(e)
ex_str =traceback.format_exc()
conf_log.error(ex_str)
with codecs.open(file_name, "w
", "
utf-8
") as outputfile:
outputfile.write(str(j_dict))

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