Can't read csv using python pandas
#### Code Sample, a copy-pastable example if possible

```python
# Your code here
import pandas
var=pandas.read_csv("C:\Script\testexp.csv")
```
#### Problem description
I am unable to read csv through python pandas.
Kindly check code snippet, it's giving following error:
  
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\ProgramData\Anaconda3\lib\site-packages\pandas\io\parsers.py", line 655, in parser_f
    return _read(filepath_or_buffer, kwds)
  File "C:\ProgramData\Anaconda3\lib\site-packages\pandas\io\parsers.py", line 405, in _read
    parser = TextFileReader(filepath_or_buffer, **kwds)
  File "C:\ProgramData\Anaconda3\lib\site-packages\pandas\io\parsers.py", line 762, in __init__
    self._make_engine(self.engine)
  File "C:\ProgramData\Anaconda3\lib\site-packages\pandas\io\parsers.py", line 966, in _make_engine
    self._engine = CParserWrapper(self.f, **self.options)
  File "C:\ProgramData\Anaconda3\lib\site-packages\pandas\io\parsers.py", line 1582, in __init__
    self._reader = parsers.TextReader(src, **kwds)
  File "pandas\_libs\parsers.pyx", line 394, in pandas._libs.parsers.TextReader.__cinit__ (pandas\_libs\parsers.c:4209)
  File "pandas\_libs\parsers.pyx", line 710, in pandas._libs.parsers.TextReader._setup_parser_source (pandas\_libs\parse
rs.c:8873)
FileNotFoundError: File b'C:\\Script\testexp.csv' does not exist

[this should explain **why** the current behaviour is a problem and why the expected output is a better solution.]

#### Expected Output

#### Output of ``pd.show_versions()``

<details>
# Paste the output here pd.show_versions() here

</details>
