Python循环遍历ndjson文件数据
Python loop through ndjson file data
我有ndjson个文件Patients.ndjson
{"resourceType":"Patient","id":"ewnMwMK-UNvVvM.bakFSlkw3","extension":[{"extension":[{"valueCoding":{"system":"http://terminology.hl7.org/CodeSystem/v3-NullFlavor","code":"UNK","display":"Unknown"},"url":"ombCategory"},{"valueString":"Unknown","url":"text"}],"url":"http://hl7.org/fhir/us/core/StructureDefinition/us-core-race"},{"extension":[{"valueString":"Unknown","url":"text"}],"url":"http://hl7.org/fhir/us/core/StructureDefinition/us-core-ethnicity"},{"valueCodeableConcept":{"coding":[{"system":"urn:oid:1.2.840.114350.1.13.520.3.7.10.698084.130.657370.334258","code":"female"}]},"url":"http://open.epic.com/FHIR/StructureDefinition/extension/legal-sex"},{"valueCodeableConcept":{"coding":[{"system":"urn:oid:1.2.840.114350.1.13.520.3.7.10.698084.130.657370.334258","code":"female"}]},"url":"http://open.epic.com/FHIR/StructureDefinition/extension/sex-for-clinical-use"},{"valueCode":"F","url":"http://hl7.org/fhir/us/core/StructureDefinition/us-core-birthsex"}],"identifier":[{"use":"usual","type":{"text":"EPIC"},"system":"urn:oid:1.2.840.114350.1.13.520.3.7.5.737384.0","value":"E9254"},{"use":"usual","type":{"text":"EXTERNAL"},"system":"urn:oid:1.2.840.114350.1.13.520.3.7.2.698084","value":"Z11363"},{"use":"usual","type":{"text":"FHIR"},"system":"http://open.epic.com/FHIR/StructureDefinition/patient-dstu2-fhir-id","value":"TYO3ktvhYAUhbae7JuBwDdpyIbUZc8kZG.bMW2ZwVnwgB"},{"use":"usual","type":{"text":"FHIR STU3"},"system":"http://open.epic.com/FHIR/StructureDefinition/patient-fhir-id","value":"ewnMwMK-UNvVvM.bakFSlkw3"},{"use":"usual","type":{"text":"PAS"},"system":"urn:oid:2.16.840.1.113883.2.1.3.12.1.1","value":"2005294"},{"use":"usual","type":{"text":"INTERNAL"},"system":"urn:oid:1.2.840.114350.1.13.520.3.7.2.698084","value":" Z11363"}],"active":true,"name":[{"extension":[{"valueCode":"NL4","url":"http://hl7.org/fhir/StructureDefinition/humanname-assembly-order"}],"use":"official","text":"Test ADVANCEPREPTWO","family":"ADVANCEPREPTWO","given":["Test"],"_family":{"extension":[{"valueString":"Advancepreptwo","url":"http://hl7.org/fhir/StructureDefinition/humanname-own-name"}]}},{"extension":[{"valueCode":"NL4","url":"http://hl7.org/fhir/StructureDefinition/humanname-assembly-order"}],"use":"usual","text":"Test ADVANCEPREPTWO","family":"ADVANCEPREPTWO","given":["Test"],"_family":{"extension":[{"valueString":"Advancepreptwo","url":"http://hl7.org/fhir/StructureDefinition/humanname-own-name"}]}}],"gender":"female","birthDate":"2006-10-07","deceasedBoolean":false,"maritalStatus":{"text":"Single"}}
{"resourceType":"Patient","id":"exU8JSL0p8npSw5g1QYAyOw3","extension":[{"extension":[{"valueCoding":{"system":"http://terminology.hl7.org/CodeSystem/v3-NullFlavor","code":"UNK","display":"Unknown"},"url":"ombCategory"},{"valueString":"Unknown","url":"text"}],"url":"http://hl7.org/fhir/us/core/StructureDefinition/us-core-race"},{"extension":[{"valueString":"Unknown","url":"text"}],"url":"http://hl7.org/fhir/us/core/StructureDefinition/us-core-ethnicity"},{"valueCodeableConcept":{"coding":[{"system":"urn:oid:1.2.840.114350.1.13.520.3.7.10.698084.130.657370.334258","code":"female"}]},"url":"http://open.epic.com/FHIR/StructureDefinition/extension/legal-sex"},{"valueCodeableConcept":{"coding":[{"system":"urn:oid:1.2.840.114350.1.13.520.3.7.10.698084.130.657370.334258","code":"female"}]},"url":"http://open.epic.com/FHIR/StructureDefinition/extension/sex-for-clinical-use"},{"valueCode":"F","url":"http://hl7.org/fhir/us/core/StructureDefinition/us-core-birthsex"}],"identifier":[{"use":"usual","type":{"text":"EPIC"},"system":"urn:oid:1.2.840.114350.1.13.520.3.7.5.737384.0","value":"E9340"},{"use":"usual","type":{"text":"EXTERNAL"},"system":"urn:oid:1.2.840.114350.1.13.520.3.7.2.698084","value":"Z11449"},{"use":"usual","type":{"text":"FHIR"},"system":"http://open.epic.com/FHIR/StructureDefinition/patient-dstu2-fhir-id","value":"TwzgMHMPt5OhnHkFA2H2DudL3FU8qcRZkZyn0F3extkAB"},{"use":"usual","type":{"text":"FHIR STU3"},"system":"http://open.epic.com/FHIR/StructureDefinition/patient-fhir-id","value":"exU8JSL0p8npSw5g1QYAyOw3"},{"use":"usual","type":{"text":"PAS"},"system":"urn:oid:2.16.840.1.113883.2.1.3.12.1.1","value":"2005380"},{"use":"usual","type":{"text":"INTERNAL"},"system":"urn:oid:1.2.840.114350.1.13.520.3.7.2.698084","value":" Z11449"}],"active":true,"name":[{"extension":[{"valueCode":"NL4","url":"http://hl7.org/fhir/StructureDefinition/humanname-assembly-order"}],"use":"official","text":"BcnScTenAugTwentyOne UPGRADETEST","family":"UPGRADETEST","given":["BcnScTenAugTwentyOne"],"_family":{"extension":[{"valueString":"UpgradeTest","url":"http://hl7.org/fhir/StructureDefinition/humanname-own-name"}]}},{"extension":[{"valueCode":"NL4","url":"http://hl7.org/fhir/StructureDefinition/humanname-assembly-order"}],"use":"usual","text":"BcnScTenAugTwentyOne UPGRADETEST","family":"UPGRADETEST","given":["BcnScTenAugTwentyOne"],"_family":{"extension":[{"valueString":"UpgradeTest","url":"http://hl7.org/fhir/StructureDefinition/humanname-own-name"}]}}],"gender":"female","birthDate":"2019-09-21","deceasedBoolean":false,"maritalStatus":{"text":"Single"}}
{"resourceType":"Patient","id":"ezER-U3fAMP-WvI-Fc8V9wQ3","extension":[{"extension":[{"valueCoding":{"system":"http://terminology.hl7.org/CodeSystem/v3-NullFlavor","code":"UNK","display":"Unknown"},"url":"ombCategory"},{"valueString":"Unknown","url":"text"}],"url":"http://hl7.org/fhir/us/core/StructureDefinition/us-core-race"},{"extension":[{"valueString":"Unknown","url":"text"}],"url":"http://hl7.org/fhir/us/core/StructureDefinition/us-core-ethnicity"},{"valueCodeableConcept":{"coding":[{"system":"urn:oid:1.2.840.114350.1.13.520.3.7.10.698084.130.657370.334258","code":"male"}]},"url":"http://open.epic.com/FHIR/StructureDefinition/extension/legal-sex"},{"valueCodeableConcept":{"coding":[{"system":"urn:oid:1.2.840.114350.1.13.520.3.7.10.698084.130.657370.334258","code":"male"}]},"url":"http://open.epic.com/FHIR/StructureDefinition/extension/sex-for-clinical-use"},{"valueCode":"M","url":"http://hl7.org/fhir/us/core/StructureDefinition/us-core-birthsex"}],"identifier":[{"use":"usual","type":{"text":"EPIC"},"system":"urn:oid:1.2.840.114350.1.13.520.3.7.5.737384.0","value":"E9411"},{"use":"usual","type":{"text":"EXTERNAL"},"system":"urn:oid:1.2.840.114350.1.13.520.3.7.2.698084","value":"Z11522"},{"use":"usual","type":{"text":"FHIR"},"system":"http://open.epic.com/FHIR/StructureDefinition/patient-dstu2-fhir-id","value":"T2oDrcOUw0w.1ZUdthu24c7V95lTOTEOUPRqBqGn99KEB"},{"use":"usual","type":{"text":"FHIR STU3"},"system":"http://open.epic.com/FHIR/StructureDefinition/patient-fhir-id","value":"ezER-U3fAMP-WvI-Fc8V9wQ3"},{"use":"usual","type":{"text":"PAS"},"system":"urn:oid:2.16.840.1.113883.2.1.3.12.1.1","value":"2005452"},{"use":"usual","type":{"text":"INTERNAL"},"system":"urn:oid:1.2.840.114350.1.13.520.3.7.2.698084","value":" Z11522"}],"active":true,"name":[{"extension":[{"valueCode":"NL4","url":"http://hl7.org/fhir/StructureDefinition/humanname-assembly-order"}],"use":"official","text":"Fred TEST","family":"TEST","given":["Fred"],"_family":{"extension":[{"valueString":"Test","url":"http://hl7.org/fhir/StructureDefinition/humanname-own-name"}]}},{"extension":[{"valueCode":"NL4","url":"http://hl7.org/fhir/StructureDefinition/humanname-assembly-order"}],"use":"usual","text":"Fred TEST","family":"TEST","given":["Fred"],"_family":{"extension":[{"valueString":"Test","url":"http://hl7.org/fhir/StructureDefinition/humanname-own-name"}]}}],"telecom":[{"system":"phone","value":"07594 832748","use":"mobile"},{"system":"email","value":"fred@email.com"}],"gender":"male","birthDate":"1967-01-19","deceasedBoolean":false,"address":[{"use":"old","line":["123 Anywhere"],"city":"Bristol","postalCode":"BS1 6JY","country":"ENG"},{"use":"home","line":["123 Anywhere"],"city":"Bristol","postalCode":"BS1 6JY","country":"ENG","period":{"start":"2022-01-19"}}],"maritalStatus":{"text":"Single"},"communication":[{"language":{"coding":[{"system":"urn:ietf:bcp:47","code":"en","display":"English"}],"text":"English"},"preferred":true}]}
我正在打开 ndjson 文件并尝试遍历字典以选择患者的所有 id、birthDate 和 deceasedDateTime
Python 读取ndjson文件的代码
import ndjson
with open('Patients.ndjson') as f:
data = ndjson.load(f)
return render_template('home.html', patient = data)
Html 模板
此 for 循环显示 html 页中的所有项目和值。
如何从给定的词典中只选择特定值 id、birthDate 和 deceasedDateTime？
{% for i in patient : %}
{% for item, value in i.items(): %}
<tr>
<td>{{ item }}</td>
<td>{{ value }}</td>
</tr>
{% endfor %}
{% endfor %}
见jinja2的section about variables，你只需要一个小改动：
main.py
from flask import Flask, render_template
import ndjson
app = Flask(__name__)
template = "tmp.html"
@app.route('/')
def main():
with open('patients.ndjson') as f:
patients = ndjson.load(f)
return render_template(template, patients=patients)
if __name__ == '__main__':
app.run(debug=True)```
tmp.html
{% for patient in patients %}
<tr>
<td>{{ patient.id }}</td>
<td>{{ patient.birthDate }}</td>
<td>{{ patient.deceasedDateTime }}</td>
</tr></br>
{% endfor %}
编辑
仅供参考，在 python 中加载 ndjson 时，它会变成字典列表。在您的模板中，您需要遍历列表，并使用我的示例中所示的键为每个字典项目获取正确的值。
您可以使用 dict.items() 但这会为您提供所有 key/value 对无序...
fe，使用以下内容将打印出 NDJSON 中每一行的整个 JSON：
{% for patient in patients %}
{% for key,val in patient.items() %}
{{ key }}: {{val}}</br>
{% endfor %}
{% endfor %}
我有ndjson个文件Patients.ndjson
{"resourceType":"Patient","id":"ewnMwMK-UNvVvM.bakFSlkw3","extension":[{"extension":[{"valueCoding":{"system":"http://terminology.hl7.org/CodeSystem/v3-NullFlavor","code":"UNK","display":"Unknown"},"url":"ombCategory"},{"valueString":"Unknown","url":"text"}],"url":"http://hl7.org/fhir/us/core/StructureDefinition/us-core-race"},{"extension":[{"valueString":"Unknown","url":"text"}],"url":"http://hl7.org/fhir/us/core/StructureDefinition/us-core-ethnicity"},{"valueCodeableConcept":{"coding":[{"system":"urn:oid:1.2.840.114350.1.13.520.3.7.10.698084.130.657370.334258","code":"female"}]},"url":"http://open.epic.com/FHIR/StructureDefinition/extension/legal-sex"},{"valueCodeableConcept":{"coding":[{"system":"urn:oid:1.2.840.114350.1.13.520.3.7.10.698084.130.657370.334258","code":"female"}]},"url":"http://open.epic.com/FHIR/StructureDefinition/extension/sex-for-clinical-use"},{"valueCode":"F","url":"http://hl7.org/fhir/us/core/StructureDefinition/us-core-birthsex"}],"identifier":[{"use":"usual","type":{"text":"EPIC"},"system":"urn:oid:1.2.840.114350.1.13.520.3.7.5.737384.0","value":"E9254"},{"use":"usual","type":{"text":"EXTERNAL"},"system":"urn:oid:1.2.840.114350.1.13.520.3.7.2.698084","value":"Z11363"},{"use":"usual","type":{"text":"FHIR"},"system":"http://open.epic.com/FHIR/StructureDefinition/patient-dstu2-fhir-id","value":"TYO3ktvhYAUhbae7JuBwDdpyIbUZc8kZG.bMW2ZwVnwgB"},{"use":"usual","type":{"text":"FHIR STU3"},"system":"http://open.epic.com/FHIR/StructureDefinition/patient-fhir-id","value":"ewnMwMK-UNvVvM.bakFSlkw3"},{"use":"usual","type":{"text":"PAS"},"system":"urn:oid:2.16.840.1.113883.2.1.3.12.1.1","value":"2005294"},{"use":"usual","type":{"text":"INTERNAL"},"system":"urn:oid:1.2.840.114350.1.13.520.3.7.2.698084","value":" Z11363"}],"active":true,"name":[{"extension":[{"valueCode":"NL4","url":"http://hl7.org/fhir/StructureDefinition/humanname-assembly-order"}],"use":"official","text":"Test ADVANCEPREPTWO","family":"ADVANCEPREPTWO","given":["Test"],"_family":{"extension":[{"valueString":"Advancepreptwo","url":"http://hl7.org/fhir/StructureDefinition/humanname-own-name"}]}},{"extension":[{"valueCode":"NL4","url":"http://hl7.org/fhir/StructureDefinition/humanname-assembly-order"}],"use":"usual","text":"Test ADVANCEPREPTWO","family":"ADVANCEPREPTWO","given":["Test"],"_family":{"extension":[{"valueString":"Advancepreptwo","url":"http://hl7.org/fhir/StructureDefinition/humanname-own-name"}]}}],"gender":"female","birthDate":"2006-10-07","deceasedBoolean":false,"maritalStatus":{"text":"Single"}}
{"resourceType":"Patient","id":"exU8JSL0p8npSw5g1QYAyOw3","extension":[{"extension":[{"valueCoding":{"system":"http://terminology.hl7.org/CodeSystem/v3-NullFlavor","code":"UNK","display":"Unknown"},"url":"ombCategory"},{"valueString":"Unknown","url":"text"}],"url":"http://hl7.org/fhir/us/core/StructureDefinition/us-core-race"},{"extension":[{"valueString":"Unknown","url":"text"}],"url":"http://hl7.org/fhir/us/core/StructureDefinition/us-core-ethnicity"},{"valueCodeableConcept":{"coding":[{"system":"urn:oid:1.2.840.114350.1.13.520.3.7.10.698084.130.657370.334258","code":"female"}]},"url":"http://open.epic.com/FHIR/StructureDefinition/extension/legal-sex"},{"valueCodeableConcept":{"coding":[{"system":"urn:oid:1.2.840.114350.1.13.520.3.7.10.698084.130.657370.334258","code":"female"}]},"url":"http://open.epic.com/FHIR/StructureDefinition/extension/sex-for-clinical-use"},{"valueCode":"F","url":"http://hl7.org/fhir/us/core/StructureDefinition/us-core-birthsex"}],"identifier":[{"use":"usual","type":{"text":"EPIC"},"system":"urn:oid:1.2.840.114350.1.13.520.3.7.5.737384.0","value":"E9340"},{"use":"usual","type":{"text":"EXTERNAL"},"system":"urn:oid:1.2.840.114350.1.13.520.3.7.2.698084","value":"Z11449"},{"use":"usual","type":{"text":"FHIR"},"system":"http://open.epic.com/FHIR/StructureDefinition/patient-dstu2-fhir-id","value":"TwzgMHMPt5OhnHkFA2H2DudL3FU8qcRZkZyn0F3extkAB"},{"use":"usual","type":{"text":"FHIR STU3"},"system":"http://open.epic.com/FHIR/StructureDefinition/patient-fhir-id","value":"exU8JSL0p8npSw5g1QYAyOw3"},{"use":"usual","type":{"text":"PAS"},"system":"urn:oid:2.16.840.1.113883.2.1.3.12.1.1","value":"2005380"},{"use":"usual","type":{"text":"INTERNAL"},"system":"urn:oid:1.2.840.114350.1.13.520.3.7.2.698084","value":" Z11449"}],"active":true,"name":[{"extension":[{"valueCode":"NL4","url":"http://hl7.org/fhir/StructureDefinition/humanname-assembly-order"}],"use":"official","text":"BcnScTenAugTwentyOne UPGRADETEST","family":"UPGRADETEST","given":["BcnScTenAugTwentyOne"],"_family":{"extension":[{"valueString":"UpgradeTest","url":"http://hl7.org/fhir/StructureDefinition/humanname-own-name"}]}},{"extension":[{"valueCode":"NL4","url":"http://hl7.org/fhir/StructureDefinition/humanname-assembly-order"}],"use":"usual","text":"BcnScTenAugTwentyOne UPGRADETEST","family":"UPGRADETEST","given":["BcnScTenAugTwentyOne"],"_family":{"extension":[{"valueString":"UpgradeTest","url":"http://hl7.org/fhir/StructureDefinition/humanname-own-name"}]}}],"gender":"female","birthDate":"2019-09-21","deceasedBoolean":false,"maritalStatus":{"text":"Single"}}
{"resourceType":"Patient","id":"ezER-U3fAMP-WvI-Fc8V9wQ3","extension":[{"extension":[{"valueCoding":{"system":"http://terminology.hl7.org/CodeSystem/v3-NullFlavor","code":"UNK","display":"Unknown"},"url":"ombCategory"},{"valueString":"Unknown","url":"text"}],"url":"http://hl7.org/fhir/us/core/StructureDefinition/us-core-race"},{"extension":[{"valueString":"Unknown","url":"text"}],"url":"http://hl7.org/fhir/us/core/StructureDefinition/us-core-ethnicity"},{"valueCodeableConcept":{"coding":[{"system":"urn:oid:1.2.840.114350.1.13.520.3.7.10.698084.130.657370.334258","code":"male"}]},"url":"http://open.epic.com/FHIR/StructureDefinition/extension/legal-sex"},{"valueCodeableConcept":{"coding":[{"system":"urn:oid:1.2.840.114350.1.13.520.3.7.10.698084.130.657370.334258","code":"male"}]},"url":"http://open.epic.com/FHIR/StructureDefinition/extension/sex-for-clinical-use"},{"valueCode":"M","url":"http://hl7.org/fhir/us/core/StructureDefinition/us-core-birthsex"}],"identifier":[{"use":"usual","type":{"text":"EPIC"},"system":"urn:oid:1.2.840.114350.1.13.520.3.7.5.737384.0","value":"E9411"},{"use":"usual","type":{"text":"EXTERNAL"},"system":"urn:oid:1.2.840.114350.1.13.520.3.7.2.698084","value":"Z11522"},{"use":"usual","type":{"text":"FHIR"},"system":"http://open.epic.com/FHIR/StructureDefinition/patient-dstu2-fhir-id","value":"T2oDrcOUw0w.1ZUdthu24c7V95lTOTEOUPRqBqGn99KEB"},{"use":"usual","type":{"text":"FHIR STU3"},"system":"http://open.epic.com/FHIR/StructureDefinition/patient-fhir-id","value":"ezER-U3fAMP-WvI-Fc8V9wQ3"},{"use":"usual","type":{"text":"PAS"},"system":"urn:oid:2.16.840.1.113883.2.1.3.12.1.1","value":"2005452"},{"use":"usual","type":{"text":"INTERNAL"},"system":"urn:oid:1.2.840.114350.1.13.520.3.7.2.698084","value":" Z11522"}],"active":true,"name":[{"extension":[{"valueCode":"NL4","url":"http://hl7.org/fhir/StructureDefinition/humanname-assembly-order"}],"use":"official","text":"Fred TEST","family":"TEST","given":["Fred"],"_family":{"extension":[{"valueString":"Test","url":"http://hl7.org/fhir/StructureDefinition/humanname-own-name"}]}},{"extension":[{"valueCode":"NL4","url":"http://hl7.org/fhir/StructureDefinition/humanname-assembly-order"}],"use":"usual","text":"Fred TEST","family":"TEST","given":["Fred"],"_family":{"extension":[{"valueString":"Test","url":"http://hl7.org/fhir/StructureDefinition/humanname-own-name"}]}}],"telecom":[{"system":"phone","value":"07594 832748","use":"mobile"},{"system":"email","value":"fred@email.com"}],"gender":"male","birthDate":"1967-01-19","deceasedBoolean":false,"address":[{"use":"old","line":["123 Anywhere"],"city":"Bristol","postalCode":"BS1 6JY","country":"ENG"},{"use":"home","line":["123 Anywhere"],"city":"Bristol","postalCode":"BS1 6JY","country":"ENG","period":{"start":"2022-01-19"}}],"maritalStatus":{"text":"Single"},"communication":[{"language":{"coding":[{"system":"urn:ietf:bcp:47","code":"en","display":"English"}],"text":"English"},"preferred":true}]}
我正在打开 ndjson 文件并尝试遍历字典以选择患者的所有 id、birthDate 和 deceasedDateTime
Python 读取ndjson文件的代码
import ndjson
with open('Patients.ndjson') as f:
data = ndjson.load(f)
return render_template('home.html', patient = data)
Html 模板 此 for 循环显示 html 页中的所有项目和值。
如何从给定的词典中只选择特定值 id、birthDate 和 deceasedDateTime？
{% for i in patient : %}
{% for item, value in i.items(): %}
<tr>
<td>{{ item }}</td>
<td>{{ value }}</td>
</tr>
{% endfor %}
{% endfor %}
见jinja2的section about variables，你只需要一个小改动：
main.py
from flask import Flask, render_template
import ndjson
app = Flask(__name__)
template = "tmp.html"
@app.route('/')
def main():
with open('patients.ndjson') as f:
patients = ndjson.load(f)
return render_template(template, patients=patients)
if __name__ == '__main__':
app.run(debug=True)```
tmp.html
{% for patient in patients %}
<tr>
<td>{{ patient.id }}</td>
<td>{{ patient.birthDate }}</td>
<td>{{ patient.deceasedDateTime }}</td>
</tr></br>
{% endfor %}
编辑
仅供参考，在 python 中加载 ndjson 时，它会变成字典列表。在您的模板中，您需要遍历列表，并使用我的示例中所示的键为每个字典项目获取正确的值。
您可以使用 dict.items() 但这会为您提供所有 key/value 对无序...
fe，使用以下内容将打印出 NDJSON 中每一行的整个 JSON：
{% for patient in patients %}
{% for key,val in patient.items() %}
{{ key }}: {{val}}</br>
{% endfor %}
{% endfor %}