ecodiv

# List unique values in a DataFrame column
pd.unique(df.column_name.ravel())

# Convert Series datatype to numeric, getting rid of any non-numeric values
df['col'] = df['col'].astype(str).convert_objects(convert_numeric=True)

# Grab DataFrame rows where column has certain values
valuelist = ['value1', 'value2', 'value3']
df = df[df.column.isin(valuelist)]

ecodiv

# By Martin Jung (2015)
# http://conservationecology.wordpress.com/
# Takes a IUCN species id code as input, which
# can ether be queried from the api (http://api.iucnredlist.org/)
# or directly from the full database downloadable here:
# http://api.iucnredlist.org/index/all.csv

isForestSpecialist <- function (inputID) 
{
  print(paste("Now processing ID",inputID))