我正在尝试创建一个正则表达式，以从该字符串中提取第一个}和最后一个from pydap.client import open_url
from pydap.cas.urs import setup_session
import xarray as xr
dataset_url = 'https://opendap.cr.usgs.gov/opendap/hyrax/MOD13Q1.006/h00v08.ncml.nc4'
### Replace with your username and password
session = setup_session('XXXX', 'XXXXXX', check_url=dataset_url)
store = xr.backends.PydapDataStore.open(dataset_url, session=session)
ds = xr.open_dataset(store)
---------------------------------------------------------------------------
HTTPError Traceback (most recent call last)
<ipython-input-5-0ddf552f3174> in <module>
----> 1 store = xr.backends.PydapDataStore.open(dataset_url, session=session)
2 ds = xr.open_dataset(store)
/opt/conda/lib/python3.7/site-packages/xarray/backends/pydap_.py in open(cls, url, session)
71 def open(cls, url, session=None):
72 import pydap.client
---> 73 ds = pydap.client.open_url(url, session=session)
74 return cls(ds)
75
/opt/conda/lib/python3.7/site-packages/pydap/client.py in open_url(url, application, session, output_grid, timeout)
65 """
66 dataset = DAPHandler(url, application, session, output_grid,
---> 67 timeout).dataset
68
69 # attach server-side functions
/opt/conda/lib/python3.7/site-packages/pydap/handlers/dap.py in __init__(self, url, application, session, output_grid, timeout)
52 ddsurl = urlunsplit((scheme, netloc, path + '.dds', query, fragment))
53 r = GET(ddsurl, application, session, timeout=timeout)
---> 54 raise_for_status(r)
55 if not r.charset:
56 r.charset = 'ascii'
/opt/conda/lib/python3.7/site-packages/pydap/net.py in raise_for_status(response)
37 detail=response.status+'\n'+response.text,
38 headers=response.headers,
---> 39 comment=response.body
40 )
41
HTTPError: 404 Not Found
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
<link rel='stylesheet' href='/opendap/docs/css/contents.css' type='text/css'/>
<title>Hyrax: Resource Not Found</title>
</head>
<body>
<p align="left"> </p>
<h1 align="center">Hyrax - Resource Not Found (404) </h1>
<hr align="left" size="1" noshade="noshade"/>
<table width="100%" border="0">
<tr>
<td>
<a href="/opendap/docs/images/largeEarth.jpg">
<img src="/opendap/docs/images/smallEarth.jpg"
alt="I looked everywhere!"
title="I looked everywhere!"
border="0"/>
</a>
</td>
<td>
<p align="left">The URL requested does not describe a resource that can be found on this server.</p>
<p align="left">If you would like to start at the top level of this server, go <a
href="/opendap/"><strong>HERE</strong></a>.</p>
<p align="left">The specific error message associated with your request was:</p>
<blockquote> <p><strong>Failed to locate resource: /MOD13Q1.006/h00v08.ncml.nc4.dds </strong></p> </blockquote>
<p align="left">If you think that the server is broken (that the URL you submitted should have worked),
then please contact the OPeNDAP user support coordinator at: <a href="mailto:lpdaac@usgs.gov">lpdaac@usgs.gov</a>
</p>
</td>
</tr>
</table>
<hr align="left" size="1" noshade="noshade"/>
<h1 align="center">Hyrax - Resource Not Found (404) </h1>
</body>
</html>
之间的字符串：
@ base64Binary3http：//schemas.microsoft.com/2003/10/Serialization/��{“ topic”：“ /subscriptions/xx/resourceGroups/usap-devgru-BBB-interfaces-resgrp/providers/Microsoft.Storage / storageAccounts / BBBdgdevstor“，” subject“：” / blobServices / default / containers / coloradoAAAready / blobs / SIU-S13_2019-5-29 16.26.11_27319.HL7“，” eventType“：” Microsoft.Storage.BlobCreated“，” eventTime“：” 2019-06-20T17：10：20.5025763Z“，” id“：” ab0f7xxxxxxx08b-278fa906f76d“，”数据“： {“ api”：“ PutBlockList”，“ clientRequestId”：“ xxxx6-92a6-7a87xx2be32b”，“ requestId”：“ xxxxx0000”，“ eTag”：“ 0xxxxxD2AEC9”，“ contentType”：“应用程序/八位字节流”，“ contentLength“：1368，” blobType“：” BlockBlob“，” url“：” https://BBBdgdevstor.blob.core.windows.net/coloradoAAAready/SIU-S13_2019-5-29 16.26.11_27319.HL7“，” sequencer“：” 0000000000000000000000000000019C0000000000969f41“，” storageDiagnostics“：{” batchId“：” a01x7f5-0785x256“}}，” dataVersion“：”“，” metadataVersion“：” 1“}
结果字符串为：
{“主题”：” / subscriptions / xx / resourceGroups / usap-devgru-BBB-interfaces-resgrp / providers / Microsoft.Storage / storageAccounts / BBBdgdevstor”，“主题”：“ / blobServices / default / containers / coloradoAAAready / blobs / SIU-S13_2019-5-29 16.26.11_27319.HL7“，” eventType“：” Microsoft.Storage.BlobCreated“，” eventTime“：” 2019-06-20T17：10：20.5025763Z“，” id“：” ab0f7xxxxxxx08b-278fa906f76d“，”数据“： {“ api”：“ PutBlockList”，“ clientRequestId”：“ xxxx6-92a6-7a87xx2be32b”，“ requestId”：“ xxxxx0000”，“ eTag”：“ 0xxxxxD2AEC9”，“ contentType”：“应用程序/八位字节流”，“ contentLength“：1368，” blobType“：” BlockBlob“，” url“：” https://BBBdgdevstor.blob.core.windows.net/coloradoAAAready/SIU-S13_2019-5-29 16.26.11_27319.HL7“，” sequencer“：” 0000000000000000000000000000019C0000000000969f41“，” storageDiagnostics“：{” batchId“：” a01x7f5-0785x256“}}，” dataVersion“：”“，” metadataVersion“：” 1“}
如何选择第一个“ {”到最后一个“}”中的文本？
答案 0 :(得分：1)
这个正则表达式不会帮您吗？
{.*}
默认情况下，正则表达式天生就是贪婪的，因此它将搜索满足条件的最大匹配，这听起来像您想要的。