我創建的程序將用於解析xml文件並將其解析數據放入數據庫中。雖然我的代碼現在很好,而且跑步,我的教練在我的代碼中的註釋,順便說一句,這是我的代碼:在python中聲明一個函數中的全局變量
import os
import time
import MySQLdb
import ConfigParser
import elementtree.ElementTree as ET
def update_database(article_code, date_received, s100rsd, remark_text, db):
cur = db.cursor()
try:
cur_query = cur.execute("""INSERT INTO tblS100CurrentListing """
"""(article_Code, dateReceived, s100RSD, remarks) VALUES (%s, %s, %s, %s) """
"""ON DUPLICATE KEY UPDATE revisedRSD = %s, remarks = %s """,
(article_code, date_received, s100rsd, remark_text, s100rsd, remark_text))
db.commit()
except MySQLdb.Error, e:
print "An error has been passed %s" %e
db.rollback
rows_affected = cur.rowcount
if rows_affected > 0:
print "Changes made in the database"
else:
print "Nothing is change in the database"
def parse_xml(source_path, xml_file):
# Alvin: !!! globals?
global article_code
global date_received
global s100rsd
global remark_text
article_code = xml_file.split('.')[0]
tree = ET.parse(xml_file)
root = tree.getroot()
order = root.find('order')
order_time = order.find('time')
year = order_time.attrib['yr']
month = order_time.attrib['month']
day = order_time.attrib['day']
hour = order_time.attrib['hr']
min = order_time.attrib['min']
sec = order_time.attrib['sec']
date_received = year + month + day + hour + min + sec
due_date = order.find('due-date')
due_date_time = due_date.find('time')
yr = due_date_time.attrib['yr']
month = due_date_time.attrib['month']
day = due_date_time.attrib['day']
s100rsd = "%s-%s-%s" %(yr, month, day)
item_info = order.find('item-info')
item_remarks = item_info.find('item-remarks')
item_remark_list = item_remarks.findall('item-remark')
item_remark_len = len(item_remark_list) - 1
item_remark = item_remark_list[item_remark_len]
remark = item_remark.find('remark')
remark_text = remark.text
def main():
config = ConfigParser.ConfigParser()
config.readfp(open('part4b.ini'))
server = config.get('main', 'Server')
port = config.get('main', 'Port')
port = int(port)
schema = config.get('main', 'Schema')
table = config.get('main', 'Table')
user = config.get('main', 'User')
password = config.get('main', 'Password')
source_path = config.get('main', 'filepath')
db = MySQLdb.connect(server, user, password, schema, port)
xml_list = os.listdir(source_path)
for xml_file in xml_list:
if xml_file.endswith('.xml'):
parse_xml(source_path, xml_file)
update_database(article_code, date_received, s100rsd, remark_text, db)
db.close()
print "This will close after 2 seconds . ."
time.sleep(2)
if __name__ == '__main__':
main()
在parse_xml功能,他不想讓我在它使用全局變量。我怎樣才能在我的主要使用這些變量沒有聲明它爲全局變量?
感謝您的幫助。
進一步就此更換......如果你使用這些值作爲屬性返回一個對象可能是整潔。 – 2012-07-13 06:33:05
謝謝你。有時我的問題非常明顯,對於新手而言很抱歉。再次感謝! – neo 2012-07-13 06:42:11
@MichaelAnderson的確如此。一個'namedtuple'是製作這樣一個輕量級對象的好方法 – 2012-07-13 06:42:34