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Given the following text description, write Python code to implement the functionality described below step by step
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Description:
 Example notebook for hydrateflash
Date
Step1:  The specific name convention for the components is not fixed.  
You are able to specify components using a variety of aliases for each component.  
See example below
Step2:  The complete list of methods and attributes for each components is quite vast. 
See 'component_properties.py' for additional details
Fugacities
There are fugacity objectes for various phases including
Step3:  Flash
The main purpose of hydrateflash is to calculate the amount of each component in each phase.
This is called a "flash" calculation.
The flash calculation for aqueous and hydrocarbon phases is complex, but tractable.
The flash calculation when hydrate is a possible phase is far more complex.
At present, CSMGem is the best option for performing hydrate flash calculations.
hydrateflash performs flash calculations fast with complete transparency. 
hydrateflash has been validated against CSMGem
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Python Code:
import component_properties as comp_table
comps = ['h2o', 'n2', 'co2']
comp_list = [comp_table.Component(ii) for ii in comps]
for comp in comp_list:
    print('{0:3s}: Tc={1:5.1f} K, Pc={2:5.1f} bar, MW={3:3.1f} g/mol'.format(
            comp.compname, comp.Tc, comp.Pc, comp.MW))
Explanation: Example notebook for hydrateflash
Date: August 13, 2017
Author: Kristopher N. Darnell  
This notebook is an example of using the hydrateflash software.
Over the coming months, this project may grow.
Components
The elementary part of this code is a thermodynamic basis for computation, which consists of:  
composition in mole fraction
pressure in bar  
temperature in Kelvin
At present, pressure and temperature take fixed units of bar and Kelvin, respectively.
Composition is defined as a list and then converted into instances of specific components. 
See example below.
End of explanation
comps = ['water', 'n_2', 'carbon dioxide']
comp_list = [comp_table.Component(ii) for ii in comps]
for comp in comp_list:
    print('{0:3s}: Tc={1:5.1f} K, Pc={2:5.1f} bar, MW={3:3.1f} g/mol'.format(
            comp.compname, comp.Tc, comp.Pc, comp.MW))
Explanation: The specific name convention for the components is not fixed.  
You are able to specify components using a variety of aliases for each component.  
See example below
End of explanation
import vlhc_srk_eos as hc
import aq_hb_eos as aq
import h_vdwpm_eos as hyd
import numpy as np
# Composition, pressure, temperature
x = np.ones(len(comps)) / len(comps)  # equal amounts of each component
P = 30  # bar
T = 300  # Kelvin
# Create instances of each equation of state
SRK_obj = hc.SrkEos(comp_list, T, P)
Aq_obj = aq.HegBromEos(comp_list, T, P)
# Access the fugacity of each component in each phase
hc_fug = SRK_obj.calc(comp_list, T, P, x, phase='vapor')
aq_fug = Aq_obj.calc(comp_list, T, P, x)
for ii, comp in enumerate(comp_list):
    print('fugacity of {0} in the hydrocarbon phase is {1:3.2f} bar'.format(
            comp.compname, hc_fug[ii]))
    print('fugacity of {0} in the aqueous phase is {1:3.2f} bar \n'.format(
            comp.compname, aq_fug[ii]))
Explanation: The complete list of methods and attributes for each components is quite vast. 
See 'component_properties.py' for additional details
Fugacities
There are fugacity objectes for various phases including:
Liquid/vapor hydrocarbons phases
aqueous phase
hydrate phase (structure 1 and structure 2)
Each phase fugacity has a file associated with it.
See example below
End of explanation
import flashalgorithm as fc
flash = fc.FlashController(components=['water', 'methane'])
output = flash.main_handler(
            compobjs=flash.compobjs, 
            z=np.asarray([0.8, 0.2]), 
            T=280.0, 
            P=70.0)
stable_dict = {phase: ii for ii, (phase, alpha) in 
                 enumerate(zip(flash.phases, flash.alpha_calc)) 
                 if alpha > 1e-10}
print('Calculation considers the following phases:\n{0}\n'.format(flash.phases))
print('The stable phases are:')
for phase, index in stable_dict.items():
    print('\n{0}: {1:3.4f} mol.%'.format(phase, flash.alpha_calc[index]))
    for ii, comp in enumerate(flash.compobjs): 
        print('\twith {0:3.4f} mol.% {1}'.format(
                flash.x_calc[ii, index],
                comp.compname))
flash2 = fc.FlashController(components=['ethane', 'methane'])
output2 = flash2.main_handler(
            compobjs=flash2.compobjs, 
            z=np.asarray([0.5, 0.5]), 
            T=260.0, 
            P=50.0)
stable_dict = {phase: ii for ii, (phase, alpha) in 
                 enumerate(zip(flash2.phases, flash2.alpha_calc)) 
                 if alpha > 1e-10}
print('Calculation considers the following phases:\n{0}\n'.format(flash2.phases))
print('The stable phases are:')
for phase, index in stable_dict.items():
    print('\n{0}: {1:3.4f} mol.%'.format(phase, flash2.alpha_calc[index]))
    for ii, comp in enumerate(flash2.compobjs): 
        print('\twith {0:3.4f} mol.% {1}'.format(
                flash2.x_calc[ii, index],
                comp.compname))
Explanation: Flash
The main purpose of hydrateflash is to calculate the amount of each component in each phase.
This is called a "flash" calculation.
The flash calculation for aqueous and hydrocarbon phases is complex, but tractable.
The flash calculation when hydrate is a possible phase is far more complex.
At present, CSMGem is the best option for performing hydrate flash calculations.
hydrateflash performs flash calculations fast with complete transparency. 
hydrateflash has been validated against CSMGem
End of explanation
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