I saved csv file in (C:/Users/kgu/PycharmProjects/untitled1/test1.py). named as `testdata.csv`

my code is :

```
import csv
f=open('testdata.csv','r',encoding='utf-8')

```

And the error message is here :

```
C:\Users\kgu\Anaconda3\python.exe 
C:/Users/kgu/PycharmProjects/untitled1/test1.py
Traceback (most recent call last):
File "C:/Users/kgu/PycharmProjects/untitled1/test1.py", line 3, in <module>
f=open('testdata.csv','r',encoding='utf-8')
FileNotFoundError: [Errno 2] No such file or directory: 'testdata.csv'

Process finished with exit code 1

```

I did save the `testdata.csv` in the python project folder.
I don't know what is wrong in it.