title: File not found error, while trying to rename files in drive using colab
body: <p>I want to rename  100 files in my google drive folder. So I write the following code:</p>
  <pre><code>from google.colab import drive
  drive.mount('/content/drive')
  import os
  for index in range(801,901):
    src=f'/content/drive/My Drive/ai-projectroll-17198,17108/.div2k/images/DIV2K_valid_LR_bicubic/X4/{index:04}X4.png'
    dst=f'/content/drive/My Drive/ai-projectroll-17198,17108/.div2k/images/DIV2K_valid_LR_bicubic/x4/{index+200:04}X4.png'
    os.rename(src,dst)
  </code></pre>
  <p>But I get the following error:</p>
  <pre><code>---------------------------------------------------------------------------
  FileNotFoundError                         Traceback (most recent call last)
  &lt;ipython-input-24-313e46a40c1b&gt; in &lt;module&gt;()
        4   dst=f'/content/drive/My Drive/ai-projectroll-17198,17108/.div2k/images/DIV2K_valid_LR_bicubic/x4/{index+200:04}X4.png'
        5   #print(dst)
  ----&gt; 6   os.rename(src,dst)
  
  FileNotFoundError: [Errno 2] No such file or directory: '/content/drive/My Drive/ai-projectroll-17198,17108/.div2k/images/DIV2K_valid_LR_bicubic/X4/0801X4.png' -&gt; '/content/drive/My Drive/ai-projectroll-17198,17108/.div2k/images/DIV2K_valid_LR_bicubic/x4/1001X4.png'
  </code></pre>
  <p>How do I get rid of it? It had worked fine for another folder.</p>