Absolute path in python

Question

I'm writing a python project in eclipse with PyDev. And I'm facing a problem. Here's construction of project

In a file in breaking_cipher package, I get the absolute path of "english_quadgrams.txt"

def __init__(self,filename="./dic/english_quadgrams.txt"): self.filename = os.path.abspath(filename) #self.filename = filename print "self:", self.filename self.dic,self.floor = generate_dic(self.filename)

The issue is when I import project to use in comandline, it obtained wrong abs dir. The dir shoudbe be "C:\Users\windy_000\workspace\cipher\dic\english_quadgrams.txt", but error display "C:\Users\windy_000\workspace\dic\english_quadgrams.txt". Did I do something wrong?

falsetru · Accepted Answer · 2014-09-14 06:08:47Z

Relative path is relative to the current working directory (os.getcwd()), not relative to the module/package file path.

If you want the path to be relative to the moduel/packages, use __file__:

def __init__(self, filename="./dic/english_quadgrams.txt"): self.filename = os.path.join(os.path.dirname(os.path.abspath(__file__)), filename) ....

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