我一直在寻找Python 3.x代码示例以获取HTTP头信息.
像Python中的get_headers一样简单的东西很容易在Python中找到.或者也许我不确定如何最好地包裹它.
从本质上讲,我想编写一些我可以看到URL是否存在的代码
一些东西
h = get_headers(url)
if(h[0] == 200)
{
print("Bingo!")
}
到目前为止,我试过了
h = http.client.HTTPResponse('http://docs.python.org/')
但总是出错
我正在为一个小型计算器动态创建我的UILabels.计算器需要两个输入,天数和初始工资,并抽出每天的总金额.计算器收取初始付款,将其翻倍,并以此形式提供答案:
On day 1, daily pay earned was $2.00
Total pay earned was $2.00
On day 2, daily pay earned was $4.00
Total pay earned was $6.00
On day 3, daily pay earned was $8.00
Total pay earned was $14.00
以下是该界面的屏幕截图:https: //www.dropbox.com/s/wunbtzyqzenrwru/Screenshot%202015-04-27%2002.40.44.png?dl=0
与StoryBoard一起:https://www.dropbox.com/s/pzuouje60x7v7k0/Screenshot%202015-04-27%2002.41.49.png ? dl =0
哪里
@IBOutlet weak var ScrollView: UIScrollView!
以下是我编码生成标签的操作.问题来自最后一行最有可能.
for comments in printArr {
println(comments)
var label = UILabel(frame: CGRectMake(0, 0, 300, 42))
label.numberOfLines = 2
label.backgroundColor = UIColor(red: 0.988, green: 0.431, …我正在通过 DiscordPy 创建一个机器人，当用户写入 时!unemployment，机器人会向美国劳工统计局网站发出服务器调用，并收集最新失业数据的 JSON 文件。
@commands.command(name="unemployment")
async def unemployment(self, context):
headers = {'Content-type': 'application/json'}
data = json.dumps({"seriesid": ['LNS14000000']})
url = "https://api.bls.gov/publicAPI/v2/timeseries/data/"
# Async HTTP request
async with aiohttp.ClientSession() as session:
raw_response = await session.post(url, data=data, headers=headers)
response = await raw_response.text()
r = json.loads(response)
该数据显示过去 24 个月的逐月数据。我使用 Pandas 根据自己的喜好格式化信息，然后将信息提供给 Matplotlib 以生成图表。
# Initialize IO
data_stream = io.BytesIO()
# Plot graph
plt.figure(figsize=(1,1))
ax = df.plot(x="period",y="value")
plt.gca().invert_xaxis()
ax.yaxis.set_major_formatter(mtick.PercentFormatter(1))
ax.get_legend().remove()
# Save content into the data stream
plt.savefig(data_stream, format='png', bbox_inches="tight", dpi …在ViewController类中,我有两个mapView函数:
第一个mapView函数处理叠加(如地图上的线条,形状等)
func mapView(_ mapView: MKMapView, rendererFor overlay: MKOverlay) -> MKOverlayRenderer
第二个mapView函数处理地图上的注释和引脚
func mapView(_ mapView: MKMapView, viewFor annotation: MKAnnotation) -> MKAnnotationView?
来自C/Python背景,我不明白你如何能够有两个命名相同的函数,并且它们不会相互覆盖.这个过程背后的想法是什么？