小编crm*_*key的帖子

因此，我有两个函数可以将python datetime.datetime()对象与毫秒之间相互转换。我无法弄清楚哪里出了问题。这是我正在使用的：

>>> import datetime
>>> def mil_to_date(mil):
    """date items from REST services are reported in milliseconds,
    this function will convert milliseconds to datetime objects

    Required:
        mil -- time in milliseconds
    """
    if mil == None:
        return None
    elif mil < 0:
        return datetime.datetime.utcfromtimestamp(0) + datetime.timedelta(seconds=(mil/1000))
    else:
        return datetime.datetime.fromtimestamp(mil / 1000)

>>> def date_to_mil(date):
    """converts datetime.datetime() object to milliseconds

    date -- datetime.datetime() object"""
    if isinstance(date, datetime.datetime):
        epoch = datetime.datetime.utcfromtimestamp(0)
        return long((date - epoch).total_seconds() * 1000.0)

>>> mil = 1394462888000 …

我在应该是一个非常简单的脚本时遇到一些麻烦.我只是尝试使用Python pyodbc模块创建一个新的SQL Server数据库.我试图传入的"sqlcommand"参数在我在SQL Server 2012中执行时工作得很好,但它从这个python脚本失败了.不知道出了什么问题,谁有任何想法？

import pyodbc, os

def create_db(folder, db_name):
    unc = r'\\arcsql\SDE\{0}'.format(folder)
    if not os.path.exists(unc):
        os.makedirs(unc)
    full_name = os.path.join(r'E:\SDE', folder, db_name)
    conn = pyodbc.connect("driver={SQL Server}; server=ArcSQL; database=master; Trusted_Connection=yes", automcommit=True) 
    cursor = conn.cursor()
    sqlcommand = """USE [master]
GO
CREATE DATABASE [{0}] ON PRIMARY
( NAME = N'{0}', FILENAME = N'{1}.mdf', SIZE = 4MB , MAXSIZE = 10MB, FILEGROWTH = 1MB )
LOG ON
( NAME = N'{0}_log', FILENAME = N'{1}_log.ldf', SIZE = 4MB , MAXSIZE = 10MB, FILEGROWTH = …

在类中创建结果对象时,是否可以__slots__在此示例中使用？我以为我可以通过传入'__slots__'第三个参数的字典来使它工作type:

class GeocodeResult(object):
    """class to handle Reverse Geocode Result"""

    __slots__ = ['geometry', 'response', 'spatialReference',
                'candidates', 'locations', 'address', 'type', 'results']

    def __init__(self, res_dict, geo_type):
        RequestError(res_dict)
        self.response = res_dict
        self.type = 'esri_' + geo_type
        self.spatialReference = None
        self.candidates = []
        self.locations = []
        self.address = []
        if 'spatialReference' in self.response:
            self.spatialReference = self.response['spatialReference']

        # more stuff

    @property
    def results(self):
        results = []
        for result in self.address + self.candidates + self.locations:
            result['__slots__'] = ['address', 'score', 'location', 'attributes'] …