We use fields() on a QgsVectorLayer to retrieve information about the fields of a vector layer.
<pre><code>uri = "D:/Python_QGIS/data/Countries.shp"
vlayer = QgsVectorLayer(uri, "Countries", "ogr")

for field in vlayer.fields():
 print(field.name())
</code></pre>

We use *fields()* on a *QgsVectorLayer* to retrieve information about the fields of a vector layer.


```
uri = "D:/Python_QGIS/data/Countries.shp"
vlayer = QgsVectorLayer(uri, "Countries", "ogr")

for field in vlayer.fields():
        print(field.name())
``` 

6- Retrieving information of vector layer

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