使用Python中的.csv文件在終端

Question

我寫了使用pyCharm運行時完美下面的腳本，但是當我去到終端上運行它，它給了我這些錯誤：

File "/Users/Chris/PycharmProjects/firstfile/trial.py", line 6, in <module> 
    r = pf.read_csv('python.csv') 
    File "/usr/local/lib/python2.7/site-packages/pandas/io/parsers.py", line 562, in parser_f 
    return _read(filepath_or_buffer, kwds) 
    File "/usr/local/lib/python2.7/site-packages/pandas/io/parsers.py", line 315, in _read 
    parser = TextFileReader(filepath_or_buffer, **kwds) 
    File "/usr/local/lib/python2.7/site-packages/pandas/io/parsers.py", line 645, in __init__ 
    self._make_engine(self.engine) 
    File "/usr/local/lib/python2.7/site-packages/pandas/io/parsers.py", line 799, in _make_engine 
    self._engine = CParserWrapper(self.f, **self.options) 
    File "/usr/local/lib/python2.7/site-packages/pandas/io/parsers.py", line 1213, in __init__ 
    self._reader = _parser.TextReader(src, **kwds) 
    File "pandas/parser.pyx", line 358, in pandas.parser.TextReader.__cinit__ (pandas/parser.c:3427) 
    File "pandas/parser.pyx", line 628, in pandas.parser.TextReader._setup_parser_source (pandas/parser.c:6861) 
IOError: File python.csv does not exist 

可在有人點正確的方向？我猜測它與csv文件不在正確的路徑或目錄中有關。現在我將csv文件保存在與我的.py項目相同的文件夾中。我也檢查並確保安裝了正確的軟件包，所以我不認爲這是正確的。

import csv 
import pandas as pf 

r = pf.read_csv('python.csv') 
r.head() 

print r.describe() 
tradeDates = r['Trade Date'].unique() 

r.name = 'Trade Date' 
for trades in tradeDates: 
outfilename = trades 
printName = outfilename + ".csv" 
print printName 
r[r['Trade Date'] == trades].to_csv(printName, index=False) 

Answer 1

當您運行蟒蛇/Users/Chris/PycharmProjects/firstfile/trial.py Python將csv文件在當前目錄中，而不是在/用戶/克里斯/ PycharmProjects/firstfile。 你要麼需要在運行代碼之前改變你的目錄，或者你需要使用的完整路徑trial.py這樣的：

import csv 
import pandas as pf 

r = pf.read_csv('/Users/Chris/PycharmProjects/firstfile/python.csv') 
r.head()