Yes and add to that a person that is the leader of the Apostles, who causes a weaker brother to stumble(Barnabas) and forces gentiles to obey the the jewish customs.Not sure what you mean by a "practising hypocrite". If you mean somebody who is knowingly and wilfully a hypocrite, and knows that he is, and knows how not to be, but still prefers to be, the answer is no, such a person does not have eternal life.
So by your own words above you have said Peter did not have Eternal Life when in reality he did zerinus.
When Cephas came to Antioch, I opposed him to his face, because he stood condemned. 12 For before certain men came from James, he used to eat with the Gentiles. But when they arrived, he began to draw back and separate himself from the Gentiles because he was afraid of those who belonged to the circumcision group. 13 The other Jews joined him in his hypocrisy, so that by their hypocrisy even Barnabas was led astray.
14 When I saw that they were not acting in line with the truth of the gospel, I said to Cephas in front of them all, “You are a Jew, yet you live like a Gentile and not like a Jew. How is it, then, that you force Gentiles to follow Jewish customs?
15 “We who are Jews by birth and not sinful Gentiles 16 know that a person is not justified by the works of the law, but by faith in Jesus Christ. So we, too, have put our faith in Christ Jesus that we may be justified by faith in Christ and not by the works of the law, because by the works of the law no one will be justified.
hope this helps !!!