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Getting particular feature using expression in PyQGIS? [on hold]

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2

How to get a particular feature using an expression in PyQGIS?

For example, there are 100 houses (with 100 entries in Attributes Table). I want to get only one house with field name ("name"=="John's House") and make get selected that feature in the map view.

qgis pyqgis select-by-attribute

share|improve this question

edited yesterday

Taras

2,2742727

asked yesterday

DevenepaliDevenepali

171

New contributor

Devenepali is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

put on hold as off-topic by ahmadhanb, Jochen Schwarze, wetland, BERA, whyzar yesterday

This question appears to be off-topic. The users who voted to close gave this specific reason:

• "When seeking help to debug/write/improve code always provide the desired behavior, a specific problem/error and the shortest code (as formatted text, not pictures) needed to reproduce it in the question body. Providing a clear problem statement and a code attempt helps others to help you." – ahmadhanb, Jochen Schwarze, BERA, whyzar

If this question can be reworded to fit the rules in the help center, please edit the question.

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  What have you tried by so far?
  
  – Taras
  yesterday
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  Possible duplicate one more time: gis.stackexchange.com/questions/131158/…. Please take a few minutes to search the web or GIS Stack Exchange before you ask a question.
  
  – Stefan
  yesterday
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks, @Stefan, I do not know why but I have not seen that thread
  
  – Taras
  yesterday
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Possible duplicate of How to select features using an expression with pyqgis?
  
  – wetland
  yesterday
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  @wetland Possible duplicate of my comment ;).
  
  – Stefan
  yesterday
  

  
  
  
  

add a comment | 

2

How to get a particular feature using an expression in PyQGIS?

For example, there are 100 houses (with 100 entries in Attributes Table). I want to get only one house with field name ("name"=="John's House") and make get selected that feature in the map view.

qgis pyqgis select-by-attribute

share|improve this question

edited yesterday

Taras

2,2742727

asked yesterday

DevenepaliDevenepali

171

New contributor

Devenepali is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

put on hold as off-topic by ahmadhanb, Jochen Schwarze, wetland, BERA, whyzar yesterday

This question appears to be off-topic. The users who voted to close gave this specific reason:

• "When seeking help to debug/write/improve code always provide the desired behavior, a specific problem/error and the shortest code (as formatted text, not pictures) needed to reproduce it in the question body. Providing a clear problem statement and a code attempt helps others to help you." – ahmadhanb, Jochen Schwarze, BERA, whyzar

If this question can be reworded to fit the rules in the help center, please edit the question.

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  What have you tried by so far?
  
  – Taras
  yesterday
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  Possible duplicate one more time: gis.stackexchange.com/questions/131158/…. Please take a few minutes to search the web or GIS Stack Exchange before you ask a question.
  
  – Stefan
  yesterday
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks, @Stefan, I do not know why but I have not seen that thread
  
  – Taras
  yesterday
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Possible duplicate of How to select features using an expression with pyqgis?
  
  – wetland
  yesterday
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  @wetland Possible duplicate of my comment ;).
  
  – Stefan
  yesterday
  

  
  
  
  

add a comment | 

How to get a particular feature using an expression in PyQGIS?

For example, there are 100 houses (with 100 entries in Attributes Table). I want to get only one house with field name ("name"=="John's House") and make get selected that feature in the map view.

qgis pyqgis select-by-attribute

share|improve this question

edited yesterday

Taras

2,2742727

asked yesterday

DevenepaliDevenepali

171

New contributor

Devenepali is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share|improve this question

edited yesterday

Taras

2,2742727

asked yesterday

DevenepaliDevenepali

171

New contributor

Devenepali is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share|improve this question

edited yesterday

Taras

2,2742727

asked yesterday

DevenepaliDevenepali

171

New contributor

Devenepali is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

edited yesterday

Taras

2,2742727

edited yesterday

Taras

2,2742727

asked yesterday

DevenepaliDevenepali

171

New contributor

Devenepali is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked yesterday

DevenepaliDevenepali

171

1 Answer
1

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oldest

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3

layer = iface.activeLayer()

layer.selectByExpression('"name"='John's House'', QgsVectorLayer.SetSelection)

selection = layer.selectedFeatures()

print(len(selection))

---

References:

• PyQGIS developer cookbook | 5.3 Selecting features


• How to select features using an expression with pyqgis?

share|improve this answer

edited yesterday

answered yesterday

TarasTaras

2,2742727

add a comment | 

3

layer = iface.activeLayer()

layer.selectByExpression('"name"='John's House'', QgsVectorLayer.SetSelection)

selection = layer.selectedFeatures()

print(len(selection))

---

References:

• PyQGIS developer cookbook | 5.3 Selecting features


• How to select features using an expression with pyqgis?

share|improve this answer

edited yesterday

answered yesterday

TarasTaras

2,2742727

add a comment | 

3

layer = iface.activeLayer()

layer.selectByExpression('"name"='John's House'', QgsVectorLayer.SetSelection)

selection = layer.selectedFeatures()

print(len(selection))

---

References:

• PyQGIS developer cookbook | 5.3 Selecting features


• How to select features using an expression with pyqgis?

share|improve this answer

edited yesterday

answered yesterday

TarasTaras

2,2742727

add a comment | 

layer = iface.activeLayer()

layer.selectByExpression('"name"='John's House'', QgsVectorLayer.SetSelection)

selection = layer.selectedFeatures()

print(len(selection))

---

References:

• PyQGIS developer cookbook | 5.3 Selecting features


• How to select features using an expression with pyqgis?

share|improve this answer

edited yesterday

answered yesterday

TarasTaras

2,2742727

layer = iface.activeLayer()

layer.selectByExpression('"name"='John's House'', QgsVectorLayer.SetSelection)

selection = layer.selectedFeatures()

print(len(selection))

share|improve this answer

edited yesterday

answered yesterday

TarasTaras

2,2742727

answered yesterday

TarasTaras

2,2742727

answered yesterday

TarasTaras

2,2742727