Yes, you need to set the side
option to "left". See below:
from Tkinter import Tk, Label, Entry, StringVar
app = Tk()
labelText=StringVar()
labelText.set("Enter directory of log files")
labelDir=Label(app, textvariable=labelText, height=4)
labelDir.pack(side="left")
directory=StringVar(None)
dirname=Entry(app,textvariable=directory,width=50)
dirname.pack(side="left")
app.mainloop()
example: