I want to copy the cell from one by row and column. I.e if Country is GB, I want to copy Col2, to Country FR COL 2. Using pandas 

**Pseudo** 

```
If (Country == "GB") then:
    Copy Col2 from GB to FR COL2

```

**Example** 

```
Country Col1   Col2
GB       4       5
FR       2       x
GB       1       6
FR       7       x
GB       2       8
CN       3       x

```

result should be 

```
Country Col1   Col2
GB       4       5
FR       2       5
GB       1       6
FR       7       6
GB       2       8
CN       3       x

```