# Python

#### Get an overview of a dataframe

```python
import pandas as pd
import pandas_profiling as pp
# Load your DataFrame
# df = pd.read_csv('your_data.csv')
# Generate the report
report = pp.ProfileReport(df)
# To display in a Jupyter Notebook
report
```

#### Check if a file exists

```python
isExist = os.path.isfile(file_path)
```

#### Get the absolute path of a file

```python
abs_path = os.path.abspath(your_path)
```

#### Get all files in first level dir

```python
from os import listdir
from os.path import isfile, join
all_files_in_data_dir = [f for f in listdir(your_dir)
                         if isfile(join(your_dir, f))]
```

#### Get all files in a dir

```python
for path, subdirs, files in os.walk(root):
    for name in files:
        print os.path.join(path, name)
```

#### Get parent dir of current dir

```python
import os
d = os.path.dirname(os.getcwd())
```

#### Get all first-level sub dir of a folder

```python
all_sub_dir = [f.path for f in os.scandir(abs_input) if f.is_dir()]
```

#### Get the last part of folder

```python
os.path.basename(os.path.normpath('/folderA/folderB/folderC/folderD/'))
```

#### Get absolute path of a dir

```python
os.path.abspath("mydir/myfile.txt")
```

#### Sort by a column

```python
df.sort_values(by=['col1'])
```


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