

import sys


if sys.version_info[0] > 2:
    from io import BytesIO
else:
    from cStringIO import StringIO as BytesIO

from pandas import DataFrame

import tablib

from tablib.compat import unicode

title = 'df'
extensions = ('df', )

def detect(stream):
    """Returns True if given stream is a DataFrame."""
    try:
        DataFrame(stream)
        return True
    except ValueError:
        return False


def export_set(dset, index=None):
    """Returns DataFrame representation of DataBook."""
    dataframe = DataFrame(dset.dict, columns=dset.headers)
    return dataframe


def import_set(dset, in_stream):
    """Returns dataset from DataFrame."""
    dset.wipe()
    dset.dict = in_stream.to_dict(orient='records')



import sys


if sys.version_info[0] > 2:
    from io import BytesIO
else:
    from cStringIO import StringIO as BytesIO

try:
    from pandas import DataFrame
except ImportError:
    DataFrame = None

import tablib

from tablib.compat import unicode

title = 'df'
extensions = ('df', )

def detect(stream):
    """Returns True if given stream is a DataFrame."""
    if DataFrame is None:
        return False
    try:
        DataFrame(stream)
        return True
    except ValueError:
        return False


def export_set(dset, index=None):
    """Returns DataFrame representation of DataBook."""
    if DataFrame is None:
        raise NotImplementedError(
            'DataFrame Format requires `pandas` to be installed.'
            ' Try `pip install tablib[pandas]`.')
    dataframe = DataFrame(dset.dict, columns=dset.headers)
    return dataframe


def import_set(dset, in_stream):
    """Returns dataset from DataFrame."""
    dset.wipe()
    dset.dict = in_stream.to_dict(orient='records')

Raise NotImplementedError if pandas is not installed
Raise NotImplementedError if pandas is not installed

  
  
  import sys
  
  
  if sys.version_info[0] > 2:
      from io import BytesIO
  else:
      from cStringIO import StringIO as BytesIO
  
+ try:
- from pandas import DataFrame
+     from pandas import DataFrame
+ except ImportError:
+     DataFrame = None
  
  import tablib
  
  from tablib.compat import unicode
  
  title = 'df'
  extensions = ('df', )
  
  def detect(stream):
      """Returns True if given stream is a DataFrame."""
+     if DataFrame is None:
+         return False
      try:
          DataFrame(stream)
          return True
      except ValueError:
          return False
  
  
  def export_set(dset, index=None):
      """Returns DataFrame representation of DataBook."""
+     if DataFrame is None:
+         raise NotImplementedError(
+             'DataFrame Format requires `pandas` to be installed.'
+             ' Try `pip install tablib[pandas]`.')
      dataframe = DataFrame(dset.dict, columns=dset.headers)
      return dataframe
  
  
  def import_set(dset, in_stream):
      """Returns dataset from DataFrame."""
      dset.wipe()
      dset.dict = in_stream.to_dict(orient='records')
  
Raise NotImplementedError if pandas is not installed
## Code Before:


import sys


if sys.version_info[0] > 2:
    from io import BytesIO
else:
    from cStringIO import StringIO as BytesIO

from pandas import DataFrame

import tablib

from tablib.compat import unicode

title = 'df'
extensions = ('df', )

def detect(stream):
    """Returns True if given stream is a DataFrame."""
    try:
        DataFrame(stream)
        return True
    except ValueError:
        return False


def export_set(dset, index=None):
    """Returns DataFrame representation of DataBook."""
    dataframe = DataFrame(dset.dict, columns=dset.headers)
    return dataframe


def import_set(dset, in_stream):
    """Returns dataset from DataFrame."""
    dset.wipe()
    dset.dict = in_stream.to_dict(orient='records')

## Instruction:
Raise NotImplementedError if pandas is not installed
## Code After:


import sys


if sys.version_info[0] > 2:
    from io import BytesIO
else:
    from cStringIO import StringIO as BytesIO

try:
    from pandas import DataFrame
except ImportError:
    DataFrame = None

import tablib

from tablib.compat import unicode

title = 'df'
extensions = ('df', )

def detect(stream):
    """Returns True if given stream is a DataFrame."""
    if DataFrame is None:
        return False
    try:
        DataFrame(stream)
        return True
    except ValueError:
        return False


def export_set(dset, index=None):
    """Returns DataFrame representation of DataBook."""
    if DataFrame is None:
        raise NotImplementedError(
            'DataFrame Format requires `pandas` to be installed.'
            ' Try `pip install tablib[pandas]`.')
    dataframe = DataFrame(dset.dict, columns=dset.headers)
    return dataframe


def import_set(dset, in_stream):
    """Returns dataset from DataFrame."""
    dset.wipe()
    dset.dict = in_stream.to_dict(orient='records')
