我想在Python 2.7中使用json
庫解析JSON多行文件。簡化樣本文件給出如下:使用Python解析多行JSON文件問題
{
"observations": {
"notice": [
{
"copyright": "Copyright Commonwealth of Australia 2015, Bureau of Meteorology. For more information see: http://www.bom.gov.au/other/copyright.shtml http://www.bom.gov.au/other/disclaimer.shtml",
"copyright_url": "http://www.bom.gov.au/other/copyright.shtml",
"disclaimer_url": "http://www.bom.gov.au/other/disclaimer.shtml",
"feedback_url": "http://www.bom.gov.au/other/feedback"
}
]
}
}
我的代碼如下:
import json
with open('test.json', 'r') as jsonFile:
for jf in jsonFile:
jf = jf.replace('\n', '')
jf = jf.strip()
weatherData = json.loads(jf)
print weatherData
不過,我得到一個錯誤,如下圖所示:
Traceback (most recent call last):
File "test.py", line 8, in <module>
weatherData = json.loads(jf)
File "/home/usr/anaconda2/lib/python2.7/json/__init__.py", line 339, in loads
return _default_decoder.decode(s)
File "/home/usr/anaconda2/lib/python2.7/json/decoder.py", line 364, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "/home/usr/anaconda2/lib/python2.7/json/decoder.py", line 380, in raw_decode
obj, end = self.scan_once(s, idx)
ValueError: Expecting object: line 1 column 1 (char 0)
只是做一些測試,我修改了代碼,以便在刪除換行符和刪除前導空格和尾隨空格後,將內容寫入另一個文件(擴展名爲json
)。令人驚訝的是,當我讀回後面的文件時,我沒有得到任何錯誤,解析成功。修改後的代碼如下:
import json
filewrite = open('out.json', 'w+')
with open('test.json', 'r') as jsonFile:
for jf in jsonFile:
jf = jf.replace('\n', '')
jf = jf.strip()
filewrite.write(jf)
filewrite.close()
with open('out.json', 'r') as newJsonFile:
for line in newJsonFile:
weatherData = json.loads(line)
print weatherData
輸出如下:
{u'observations': {u'notice': [{u'copyright_url': u'http://www.bom.gov.au/other/copyright.shtml', u'disclaimer_url': u'http://www.bom.gov.au/other/disclaimer.shtml', u'copyright': u'Copyright Commonwealth of Australia 2015, Bureau of Meteorology. For more information see: http://www.bom.gov.au/other/copyright.shtml http://www.bom.gov.au/other/disclaimer.shtml', u'feedback_url': u'http://www.bom.gov.au/other/feedback'}]}}
任何想法可能什麼時候換行和空格使用json
庫之前被剝離?
謝謝@OkezieE。通過'load'加載整個文件就可以實現。 – hypersonics